How hotel prices move through the year, and the reason behind every curve.
Almost every market in this data follows one of four patterns.
These cities are cheapest in December or January, wherever the peak happens to fall.
Boston runs $166 in January and $458 in October, a 2.75 times difference between months.
Boston, Chicago, Seattle, Milwaukee
These cities are cheapest at the height of summer, when nobody wants to be outside in them.
Phoenix peaks at $246 during spring training and falls to $96 in August.
Phoenix, Miami, Tampa, Palm Springs, Orlando
Flat all year, except the one month a major event is in town.
Omaha sits near $100 until the College World Series takes June to $182.
Omaha, Indianapolis, Albuquerque, New Orleans
Steady business demand keeps these markets level all year.
Los Angeles moves 13% across the entire year. Dallas 19%, El Paso 10%.
Los Angeles, Dallas, El Paso
Pick up to three of the fifty markets to compare.
Hover any point for the rate. A hollow ring marks a month with a known event behind the spike.
If the dates are fixed but the city is not, true of most off-sites, sales kickoffs, and training weeks, this is where to point the trip.
Its cheapest month, before the convention calendar starts.
Desert high season, so you are bidding against leisure.
The gap between the big convention weeks.
Snowbird peak.
Flat market, and almost everyone can fly there direct.
Spring training owns the city.
SXSW is gone and the city has its rooms back.
Cherry blossoms on top of everyone else’s spring board meeting.
Ahead of the summer peak, and the airport connects to everything.
Graduation weekends take the whole month.
Its cheapest month, and nobody is outside anyway.
Its most expensive month of the year.
The convention capital near its cheapest month.
Comic-Con.
Congressional recess empties the city.
Its one reliably nice month, and everyone knows it.
Its cheapest month by a wide margin.
The September surge, when every company books at once.
The heat breaks before the rates catch up.
Leaf season on top of conference season.
The world’s busiest airport, near its cheapest month.
The highest November rate in the set, with no clear event behind it.
Its cheapest month, once the conference calendar wraps.
The most expensive city-month in the dataset.
Weather sets the baseline, events cause the spikes, and a few big markets ignore both.
Time the seasonal cities, calendar-check the spikes, and book the flat ones whenever.
Forty of the fifty markets are cheapest between November and February. The ten exceptions, in red, sit almost entirely in the Sun Belt.
Two thirds of the fifty are cheapest in December or January. Five months of the year are the cheapest month for no market at all.
Four things this dataset says that a national average would hide.
Forty of these fifty markets are cheapest in a cold month, and thirty-seven bottom out in December or January specifically. The ten exceptions are Phoenix, Palm Springs, Miami, Tampa, Orlando, New Orleans, Austin, Las Vegas, Jacksonville and Washington, D.C.
Nine are hot places where summer, not winter, is the off season. The tenth is Washington, for reasons unrelated to weather.
Across all fifty markets, zero are cheapest in March, April, May, July or October, and two thirds bottom out in December or January.
Spring is nobody's bargain: thirteen markets top out in March, April or May. If a trip has to move, moving it into spring reliably costs more.
Timing is worth up to 64%; picking a different city is worth up to 6.2 times. Oklahoma City in December is $87 a night, New York is $541.
Thirty of the fifty have a most-expensive month that is still cheaper than New York's cheapest. If the city is up for discussion, that decision outweighs everything else on this page.
Averaged across all fifty markets, the national curve swings just 21%, from $138 in January to $174 in October. Individual cities swing 60% and more.
The Sun Belt's summer collapse cancels the Snow Belt's summer peak, so the aggregate comes out nearly flat even though almost no individual market is.
Some of these curves are weather, some are one event on a calendar, and a few are neither.
New York has the highest low in the dataset and the sharpest single-month jump in it: December at $541 is nearly double November's $352 and almost triple January's $196. The swing follows the corporate and holiday calendars, not the weather, which is why it fits none of the four categories. Even its cheapest month costs more than thirty of these fifty markets ever reach.
Omaha sits between $95 and $126 for eleven months, then hits $182 in June, 1.48 times its neighboring months and the second-sharpest jump in the set behind New York's December. The College World Series has run there every June since 1950,1 the most plausible driver.
Albuquerque is flat between $111 and $156 for eleven months, then hits $179 in October, when the Balloon Fiesta runs.2 The shape matches Omaha's: one event, one month, 1.43 times its neighbors.
San Diego drifts between $156 and $231 all year except July, which hits $292, about $70 above its neighbors. Comic-Con International takes place there for four days that month.3
New Orleans peaks twice for different reasons: February at $231 overlaps Mardi Gras,4 and October at $228 coincides with convention season. Its cheapest month is August at $124, when heat and humidity empty the city out.
Indianapolis runs flat and cheap until May, when the Indy 500 arrives near the end of the month.5 Houston does it in March, when the Houston Livestock Show and Rodeo runs for about three weeks.6 Both calendars line up with the spikes, though the data cannot prove causation.
Phoenix is the sharpest inversion in the set: Cactus League spring training fills ten area ballparks7 while the weather is at its mildest, then summer hits 110 degrees and the city empties. August is $96, the cheapest big-market month here.
Palm Springs runs almost perfectly opposite to Boston. It is a resort market with little year-round business demand to flatten the curve, so prices track the weather almost exactly: March is $369, August is $158.
Washington is the one summer-low city with little connection to heat: it is cheapest in August, 44% below May, while Congress is in its long summer recess.8 The recess is a plausible contributor, though the data cannot isolate it.
Minneapolis swings less than Seattle or Chicago despite harder winters than either. Jack's read: downtown is connected by miles of enclosed skyway and the region's largest attraction is an indoor mall. Cold that does not stop anyone from doing business does not discount the rooms either.
Seattle is the cleanest weather story in the dataset, with no event driving any of it. July is $297 and January is $139: nine months of rain, two excellent ones, and pricing that follows.
Boston has two peaks that nearly tie: May at $390, when commencement weekends stack across dozens of colleges, and October at $458, when leaf season meets conference season. January is $166, a 64% spread that ties New York for the widest here.
Chicago's summer is the nice season and the working season at once: McCormick Place, the largest convention center in North America, books heavily in the warm months. June is $319 against $127 in January.
Honolulu swings only 23%, but its low of $169 is the third highest here. With no drive-in market and no fast way to add rooms, rates hold a narrow, high band, and timing saves less here than anywhere else in the set.
Las Vegas is a summer low, but not for the usual reason: it is cheapest in June at $132 because of the heat, and most expensive in October at $180, one of the heaviest convention months of the year.
Austin's peak is October, when Austin City Limits runs two weekends in Zilker Park9 and the Formula 1 United States Grand Prix runs at Circuit of the Americas.10 Its cheapest month is August at $134, when it is 100 degrees and SXSW is seven months away in either direction.
Oklahoma City holds the cheapest single cell in the dataset, $87 in December, and never crosses $111 all year. El Paso is the flattest market at 10% top to bottom. Both are steady working markets whose demand does not care what month it is.
The large figure is each month against that city’s own median, the small one is the rate itself. A dashed outline marks its cheapest month, a solid one its priciest; click any row to load it in the chart above.
| City | Median | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Spread | Type & quick take |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Boston | $331 | -$165$166 | -$145$186 | -$64$267 | even$331 | +$59$390 | +$37$368 | +$1$332 | -$17$314 | +$103$434 | +$127$458 | -$30$301 | -$144$187 | 64% | Winter lowFall peaks at 2.75× January; winter is cheapest. |
| New York | $335 | -$139$196 | -$133$202 | -$58$277 | even$335 | +$37$372 | -$8$327 | -$67$268 | -$62$273 | +$123$458 | +$94$429 | +$17$352 | +$206$541 | 64% | Its ownIts own genre: swings 64%, and December ($541) is the priciest cell in the set. |
| Phoenix | $159 | +$18$177 | +$87$246 | +$87$246 | +$14$173 | -$28$131 | -$54$105 | -$61$98 | -$63$96 | -$41$118 | even$159 | +$2$161 | -$22$137 | 61% | Summer lowSpring training peaks ($246), August melts to $96. |
| Chicago | $274 | -$147$127 | -$135$139 | -$86$188 | -$70$204 | +$31$305 | +$45$319 | even$274 | +$6$280 | +$26$300 | +$19$293 | -$66$208 | -$120$154 | 60% | Winter lowWinter is 60% off; summer–fall is one long peak. |
| Palm Springs | $204 | +$37$241 | +$84$288 | +$165$369 | +$155$359 | even$204 | -$33$171 | -$43$161 | -$46$158 | -$33$171 | -$6$198 | +$24$228 | even$204 | 57% | Summer lowThe desert off-site capital: March hits $369, August falls to $158. |
| Norfolk | $129 | -$33$96 | -$30$99 | -$13$116 | even$129 | +$22$151 | +$49$178 | +$87$216 | +$65$194 | +$1$130 | -$6$123 | -$24$105 | -$28$101 | 56% | Winter lowSummer doubles; winter is cheapest. |
| Seattle | $212 | -$73$139 | -$62$150 | -$53$159 | -$43$169 | +$1$213 | +$67$279 | +$85$297 | +$60$272 | +$41$253 | even$212 | -$47$165 | -$70$142 | 53% | Winter lowJuly doubles January ($297 vs $139), book Nov–Feb. |
| Miami | $179 | +$54$233 | +$88$267 | +$79$258 | +$36$215 | even$179 | -$22$157 | -$30$149 | -$44$135 | -$51$128 | -$20$159 | -$3$176 | +$58$237 | 52% | Summer lowFebruary peaks ($267), September is half price ($128). |
| Omaha | $110 | -$12$98 | -$4$106 | -$5$105 | even$110 | +$16$126 | +$72$182 | +$10$120 | +$5$115 | even$110 | +$1$111 | -$8$102 | -$15$95 | 48% | One-weekFlat, until the College World Series nearly doubles June ($182 vs ~$100). |
| Milwaukee | $130 | -$21$109 | -$22$108 | -$13$117 | -$7$123 | +$2$132 | +$33$163 | +$64$194 | +$28$158 | +$6$136 | even$130 | -$16$114 | -$27$103 | 47% | Winter lowSummer nearly doubles; December is cheapest. |
| San Diego | $195 | -$38$157 | -$12$183 | -$6$189 | -$1$194 | +$7$202 | +$36$231 | +$97$292 | +$14$209 | even$195 | even$195 | -$24$171 | -$39$156 | 47% | One-weekFlat-ish, until Comic-Con spikes July ($292 vs ~$190). |
| New Orleans | $165 | -$12$153 | +$66$231 | +$33$198 | +$40$205 | even$165 | -$31$134 | -$12$153 | -$41$124 | -$27$138 | +$63$228 | +$30$195 | -$13$152 | 46% | One-weekEvent town: Mardi Gras February and festival October peak; late summer is cheapest ($124). |
| Denver | $169 | -$48$121 | -$30$139 | -$31$138 | -$3$166 | even$169 | +$52$221 | +$44$213 | +$25$194 | +$30$199 | +$13$182 | -$34$135 | -$48$121 | 45% | Winter lowJune peaks ($221); deep winter is cheapest. |
| Nashville | $195 | -$59$136 | -$43$152 | -$17$178 | +$2$197 | +$1$196 | +$20$215 | -$10$185 | even$195 | +$25$220 | +$48$243 | -$8$187 | -$49$146 | 44% | Winter lowOctober peaks ($243); deep winter is cheapest. |
| Washington, D.C. | $287 | -$91$196 | -$87$200 | +$16$303 | +$28$315 | +$30$317 | even$287 | -$64$223 | -$108$179 | +$3$290 | +$15$302 | -$63$224 | -$105$182 | 44% | Summer lowSpring peaks ($317 in May); August recess is 44% off ($179). |
| Tampa | $167 | +$32$199 | +$66$233 | +$57$224 | +$45$212 | even$167 | -$15$152 | -$24$143 | -$32$135 | -$32$135 | -$15$152 | -$8$159 | +$1$168 | 42% | Summer lowSnowbird winter peaks; late summer ~40% less. |
| Charleston | $173 | -$50$123 | -$28$145 | +$26$199 | +$32$205 | +$35$208 | +$23$196 | +$22$195 | even$173 | -$9$164 | -$6$167 | -$21$152 | -$50$123 | 41% | Winter lowSpring peaks; deep winter is cheapest. |
| Albuquerque | $131 | -$20$111 | -$15$116 | -$4$127 | even$131 | +$3$134 | +$5$136 | even$131 | -$4$127 | +$3$134 | +$48$179 | -$14$117 | -$20$111 | 38% | One-weekFlat, until Balloon Fiesta spikes October ($179 vs ~$120). |
| Philadelphia | $203 | -$37$166 | -$34$169 | even$203 | +$19$222 | +$56$259 | +$41$244 | -$4$199 | -$20$183 | +$9$212 | +$43$246 | -$6$197 | -$41$162 | 37% | Winter lowMay peaks; winter value. |
| Austin | $164 | -$19$145 | +$4$168 | +$26$190 | +$5$169 | -$5$159 | -$14$150 | -$22$142 | -$30$134 | +$2$166 | +$45$209 | even$164 | -$24$140 | 36% | One-weekEvent town: October (ACL + F1) peaks ($209); late summer is cheapest. |
| San Francisco | $166 | even$166 | even$166 | +$31$197 | -$7$159 | +$2$168 | +$3$169 | -$12$154 | -$14$152 | +$26$192 | +$10$176 | -$19$147 | -$37$129 | 35% | Its ownConference calendar sets it: March and September swing; December is cheapest ($129). |
| Houston | $135 | -$16$119 | even$135 | +$39$174 | +$11$146 | +$4$139 | +$6$141 | -$1$134 | -$6$129 | -$4$131 | even$135 | -$6$129 | -$21$114 | 34% | One-weekFlat, until the Rodeo spikes March. Cheapest in December. |
| Cincinnati | $133 | -$27$106 | -$25$108 | -$15$118 | +$6$139 | even$133 | +$19$152 | +$23$156 | +$9$142 | +$2$135 | -$8$125 | -$23$110 | -$29$104 | 33% | FlatFlat-ish: mild summer peak, cheapest in December. |
| Orlando | $129 | +$3$132 | +$21$150 | +$14$143 | +$4$133 | -$9$120 | +$1$130 | -$12$117 | -$28$101 | -$28$101 | -$15$114 | -$8$121 | even$129 | 33% | Summer lowConvention winter peaks; late summer about a third off. |
| Cleveland | $158 | -$34$124 | -$34$124 | -$19$139 | -$12$146 | even$158 | +$15$173 | +$25$183 | +$15$173 | +$20$178 | even$158 | -$17$141 | -$30$128 | 32% | Winter lowJuly peaks, January cheapest. |
| Indianapolis | $125 | -$11$114 | -$18$107 | -$3$122 | +$8$133 | +$33$158 | +$15$140 | +$30$155 | even$125 | -$8$117 | +$9$134 | -$3$122 | -$13$112 | 32% | One-weekFlat, until the Indy 500 spikes May. |
| Pittsburgh | $158 | -$27$131 | -$27$131 | -$24$134 | +$11$169 | +$22$180 | +$33$191 | -$2$156 | even$158 | +$14$172 | +$25$183 | -$8$150 | -$23$135 | 31% | Winter lowSummer peaks, late winter cheapest. |
| Louisville | $141 | -$35$106 | -$7$134 | +$3$144 | +$6$147 | +$3$144 | -$14$127 | +$3$144 | -$17$124 | +$8$149 | even$141 | -$23$118 | -$31$110 | 29% | FlatFlat-ish: cheapest in January; autumn edges the top. |
| Minneapolis | $137 | -$23$114 | -$23$114 | -$12$125 | -$7$130 | even$137 | +$15$152 | +$19$156 | +$7$144 | +$4$141 | +$6$143 | -$15$122 | -$26$111 | 29% | Winter lowJuly peak, December discount. |
| Salt Lake City | $141 | -$16$125 | -$14$127 | even$141 | +$10$151 | +$13$154 | +$19$160 | +$2$143 | -$6$135 | +$7$148 | -$5$136 | -$20$121 | -$26$115 | 28% | Winter lowGentle summer peak; December is cheapest. |
| Las Vegas | $154 | +$4$158 | -$11$143 | +$5$159 | -$3$151 | +$7$161 | -$22$132 | -$19$135 | -$19$135 | +$2$156 | +$26$180 | even$154 | -$6$148 | 27% | Summer lowJune is cheapest ($132), October conferences peak ($180). |
| Detroit | $197 | -$29$168 | -$27$170 | -$27$170 | -$9$188 | +$17$214 | +$17$214 | +$21$218 | even$197 | +$15$212 | +$31$228 | -$26$171 | -$29$168 | 26% | FlatFlat-ish with a fall lean; winter is cheapest. |
| Atlanta | $150 | even$150 | -$3$147 | +$4$154 | +$9$159 | -$1$149 | +$5$155 | +$10$160 | -$8$142 | -$11$139 | +$1$151 | -$23$127 | -$30$120 | 25% | FlatMostly flat; cheapest in December. Book almost whenever. |
| Portland | $125 | -$16$109 | -$7$118 | -$9$116 | -$5$120 | +$2$127 | +$18$143 | +$20$145 | +$14$139 | +$3$128 | even$125 | -$11$114 | -$16$109 | 25% | Winter lowJuly bump, winter cheapest. |
| Kansas City | $142 | -$25$117 | -$19$123 | -$10$132 | +$4$146 | +$7$149 | +$11$153 | +$4$146 | -$8$134 | even$142 | +$4$146 | -$7$135 | -$17$125 | 24% | Winter lowGentle summer bump; January cheapest. |
| St. Louis | $156 | -$27$129 | -$20$136 | +$5$161 | +$6$162 | +$5$161 | +$14$170 | +$11$167 | -$2$154 | even$156 | -$12$144 | -$14$142 | -$25$131 | 24% | Winter lowMild summer peak; winter value. |
| Baltimore | $142 | -$24$118 | -$14$128 | -$15$127 | -$8$134 | +$5$147 | +$10$152 | +$4$146 | even$142 | +$2$144 | +$2$144 | -$17$125 | -$24$118 | 22% | Winter lowGentle summer bump; winter value. |
| Columbus | $127 | -$17$110 | -$17$110 | -$8$119 | -$8$119 | +$14$141 | +$1$128 | +$8$135 | even$127 | even$127 | even$127 | -$5$122 | -$17$110 | 22% | FlatSteady; May bump, winter cheapest. |
| Jacksonville | $121 | -$2$119 | +$5$126 | +$21$142 | +$5$126 | +$6$127 | -$3$118 | even$121 | -$8$113 | -$10$111 | -$2$119 | -$3$118 | even$121 | 22% | FlatFlat-ish: spring bump, early fall cheapest. |
| Oklahoma City | $97 | -$7$90 | -$7$90 | +$1$98 | +$5$102 | +$11$108 | +$14$111 | +$2$99 | even$97 | even$97 | -$4$93 | -$4$93 | -$10$87 | 22% | FlatFlat, with the lowest month in the set ($87 in December). |
| Savannah | $138 | -$20$118 | -$1$137 | +$14$152 | +$11$149 | +$10$148 | +$10$148 | -$2$136 | -$12$126 | even$138 | +$6$144 | -$5$133 | -$17$121 | 22% | One-weekMarch (St. Patrick’s) peaks; deep winter is cheapest. |
| Honolulu | $184 | -$2$182 | +$9$193 | -$6$178 | -$4$180 | -$4$180 | +$20$204 | +$27$211 | +$14$198 | even$184 | -$7$177 | -$15$169 | +$27$211 | 20% | FlatIts own model: summer spikes, November is the local low, never truly cheap. |
| Raleigh–Durham | $135 | -$16$119 | -$10$125 | -$5$130 | even$135 | +$5$140 | +$8$143 | -$2$133 | -$5$130 | even$135 | +$13$148 | even$135 | -$6$129 | 20% | FlatFlat: autumn bump, January cheapest. |
| San Antonio | $117 | -$18$99 | +$5$122 | +$7$124 | +$1$118 | -$8$109 | +$5$122 | +$7$124 | -$10$107 | -$10$107 | even$117 | -$8$109 | -$11$106 | 20% | One-weekFlat and cheap; small spring (rodeo) bump, January cheapest. |
| Dallas–Fort Worth | $125 | -$3$122 | -$2$123 | +$2$127 | +$4$129 | -$1$124 | +$14$139 | +$3$128 | -$4$121 | even$125 | +$5$130 | -$6$119 | -$13$112 | 19% | FlatFlat market: the smallest big-market swing. Book whenever. |
| Sacramento | $148 | -$8$140 | -$8$140 | -$1$147 | even$148 | even$148 | +$11$159 | +$20$168 | +$11$159 | even$148 | +$18$166 | -$12$136 | -$11$137 | 19% | FlatFlat-ish: July bump, November cheapest. |
| Charlotte | $131 | -$11$120 | -$5$126 | -$3$128 | +$2$133 | +$14$145 | +$8$139 | +$1$132 | -$2$129 | even$131 | +$6$137 | even$131 | -$6$125 | 17% | One-weekFlat, with a small May bump (race week). |
| Memphis | $118 | -$11$107 | -$6$112 | +$5$123 | even$118 | +$6$124 | even$118 | +$4$122 | -$1$117 | -$3$115 | -$1$117 | +$1$119 | -$15$103 | 17% | FlatFlat and affordable; December cheapest. |
| Los Angeles | $169 | -$12$157 | even$169 | +$6$175 | even$169 | +$4$173 | +$5$174 | +$7$176 | -$1$168 | -$3$166 | +$12$181 | -$6$163 | -$7$162 | 13% | FlatFlat market, ignores the model. ~$170 year-round. |
| El Paso | $126 | -$7$119 | -$3$123 | +$2$128 | even$126 | -$5$121 | +$4$130 | -$8$118 | -$3$123 | +$1$127 | +$2$128 | +$1$127 | -$9$117 | 10% | FlatFlattest market in the set, 10% top to bottom. Book whenever. |
Across the 50 markets in this data, the median nightly rate business travelers saw ran from $138 in January to $174 in October, a national swing of only 21%. Individual cities swing anywhere from 10% to 64%; the calm national average is forty markets moving one way and ten moving the other, canceling out.
It depends entirely on the city, and by “when” we mean which month you stay, not how far ahead you book. Forty of these fifty cities are cheapest sometime between November and February. The other ten, mostly in the Sun Belt, are cheapest in summer instead. Pick your city in the chart above to see its actual pattern rather than guessing from a national rule of thumb.
Every figure on this page comes from searches on Engine, a travel platform companies use to book work trips. Each time someone searched, we recorded the lowest publicly available nightly rate shown for each hotel. Over two years that added up to 128,536,941 prices across 50 U.S. markets.
No. These are public shelf prices, meaning what the market quotes anyone who looks, not the negotiated rate a company pays through a hotel program or a travel platform. Negotiated company rates typically sit below what is shown here, so these figures show the visible market, not what any company paid.
A straight average lets one very cheap or very expensive listing pull a whole city’s number around. We used the median, the middle price across all qualifying searches, and excluded anything below $35 or above $2,000 a night before calculating, so data errors and outlier listings cannot distort a city’s result.
To see how hotel prices move through the year in each major U.S. city, we analyzed the 128,536,941 hotel prices that business travelers saw when searching on Engine, a platform companies use to book work trips.
What we measured. Every data point is a nightly hotel rate shown in a live search on Engine, meaning the prices companies see when planning a trip rather than the rates they ultimately paid. For each search we took the lowest nightly rate shown for a given hotel, so the figures reflect the best publicly available price a traveler would encounter.
Whose trips we looked at. We focused on planned travel, the way a company organizes an off-site or a conference trip rather than a last-minute booking. That means we included only searches made 10 to 180 days before check-in. We limited the data to business accounts and excluded internal, test, and promotional activity so the numbers reflect corporate demand.
How we defined each city. We grouped hotels into metropolitan markets, then tightened each market to its principal city and any immediately relevant surrounding areas, specifically places that make up at least 10% of the market’s searches. This keeps a city’s number true to what people picture when they hear its name. “Denver” reflects Denver, not far-flung parts of its broader region like Aspen or Laramie, while closely connected areas are still included (Boston, for instance, includes Cambridge).
How we calculated the typical price. For each city and each month we report the median nightly rate across all qualifying searches, the middle price, rather than the average. The median prevents a handful of ultra-cheap or ultra-expensive listings from distorting the result. To further guard against data errors we excluded rates below $35 or above $2,000 per night before calculating. Seasonal patterns are pooled across multiple years (mid-2024 through mid-2026) to smooth out year-to-year noise.
A few caveats. These are advertised rates, not final booked prices, so they capture what the market looks like rather than any individual company’s negotiated savings. More heavily searched destinations carry proportionally more weight in the data. And because we combine multiple years, an unusually large one-off event can occasionally push a single city-month higher than a typical year. The event explanations on this page describe what sits on the calendar in a given month; they are our reading of why a curve moves, not a separate measurement.
Every number here started as a search: a company looking at a city and comparing rates. We are one of the few places that sees the market at that moment rather than after the booking, so we published what it looks like.
Two years of this only covers two years. Some of these curves will hold and some are one unusual conference away from looking different next year. We will keep updating it.
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