Pavillion, Wyoming climate: Normal weather by month, frost dates and records
Pavillion's normal year runs from 9°F December nights to 86°F July afternoons, with 8.8 inches of precipitation and 28 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 7.2°C, December lows of −13°C, July highs of 30°C, 224 mm of precipitation a year.
- NOAA stationPavillion
- Station IDUSC00487115
- Location43.25°N 108.69°W
- Elevation5,480 ft (1,670 m)
- Population229
On October 23, the normal high in Pavillion is 55°F and the normal low 29°F, and the chance of measurable rain or snow is 8%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Pavillion.
- Jan 34° 10°
- Feb 38° 14°
- Mar 50° 23°
- Apr 58° 31°
- May 67° 40°
- Jun 77° 48°
- Jul 86° 55°
- Aug 83° 53°
- Sep 74° 44°
- Oct 59° 32°
- Nov 44° 19°
- Dec 33° 9°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Pavillion each month?
July is the warmest month, with normal highs of 86°F; December the coldest, with normal lows of 9°F. The most precipitation falls in May (2.09 in), the least in January (0.27 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 34°F | 10°F | 21.7°F | 0.27 | 4.1 | 2 | <1 | 31 | 9 h 20 min |
| February | 38°F | 14°F | 25.6°F | 0.28 | 4.7 | 2 | <1 | 27 | 10 h 30 min |
| March | 50°F | 23°F | 36.8°F | 0.43 | 3.6 | 2 | <1 | 27 | 11 h 50 min |
| April | 58°F | 31°F | 44.4°F | 1.07 | 4.9 | 4 | <1 | 18 | 13 h 20 min |
| May | 67°F | 40°F | 53.5°F | 2.09 | 0.4 | 6 | <1 | 6 | 14 h 40 min |
| June | 77°F | 48°F | 62.4°F | 1.14 | 0.2 | 4 | 2 | <1 | 15 h 20 min |
| July | 86°F | 55°F | 70.3°F | 0.73 | 0.0 | 3 | 9 | <1 | 15 h 10 min |
| August | 83°F | 53°F | 68.1°F | 0.56 | 0.0 | 3 | 4 | <1 | 14 h |
| September | 74°F | 44°F | 58.8°F | 0.87 | 0.3 | 3 | <1 | 2 | 12 h 30 min |
| October | 59°F | 32°F | 45.5°F | 0.74 | 1.9 | 3 | <1 | 16 | 11 h 10 min |
| November | 44°F | 19°F | 31.4°F | 0.35 | 3.4 | 2 | <1 | 27 | 9 h 50 min |
| December | 33°F | 9°F | 21.0°F | 0.28 | 4.9 | 2 | <1 | 31 | 9 h |
| Year (annual) | 59°F | 32°F | 45.0°F | 8.81 | 28.4 | 37 | 15 | 183 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 1°C | −12°C | −5.7°C | 7 mm | 10 cm |
| February | 3°C | −10°C | −3.6°C | 7 mm | 12 cm |
| March | 10°C | −5°C | 2.7°C | 11 mm | 9 cm |
| April | 14°C | −1°C | 6.9°C | 27 mm | 12 cm |
| May | 19°C | 4°C | 11.9°C | 53 mm | 1 cm |
| June | 25°C | 9°C | 16.9°C | 29 mm | 1 cm |
| July | 30°C | 13°C | 21.3°C | 19 mm | 0 cm |
| August | 28°C | 12°C | 20.1°C | 14 mm | 0 cm |
| September | 23°C | 7°C | 14.9°C | 22 mm | 1 cm |
| October | 15°C | 0°C | 7.5°C | 19 mm | 5 cm |
| November | 7°C | −7°C | −0.3°C | 9 mm | 9 cm |
| December | 0°C | −13°C | −6.1°C | 7 mm | 12 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00487115; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Pavillion?
Normal highs sit between 65°F and 85°F in May, June, August and September. Of those, September has the fewest days with rain (3).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00487115.
When is the last frost in Pavillion?
In Pavillion, the last spring frost (32°F) comes after May 14 in half of years and after May 29 in one year in ten; the first autumn frost comes before September 30 in half of years and before September 18 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- May 141 year in 10 after May 29; 9 in 10 after April 30
- First autumn frost, half of years before
- September 301 year in 10 before September 18; 9 in 10 before October 15
NOAA puts the median frost-free season at 139 days, and the season without a hard freeze (28°F) at 158 days.
A hard freeze (28°F) comes after May 2 in half of springs and before October 9 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Pavillion in zone 5a in ZIP code 82516, the nearest ZIP area.
Frost dates for every NOAA station in Wyoming · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00487115; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Pavillion?
In a normal year in Pavillion, 15 days a year reach 90°F, 183 nights fall to 32°F or colder and 37 days bring measurable precipitation.
- Days at 90°F or more
- 15a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 183a normal year
- Days that stay below freezing
- 47high of 32°F or less
- Days with 0.01 inch of precipitation
- 37a normal year
- Days with 1 inch of snow or more
- 8a normal year
The highest temperature in this station's record (since 1919) is 101°F, on July 14, 1925; the lowest is −42°F, on December 19, 1924.
The wettest calendar year on that record is 2023, with 15.88 in; the snowiest season is 1961–62, with 59.5 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00487115; records: ACIS (NOAA Regional Climate Centers), station USC00487115. Records use complete months only; a month missing more than three days is left out.
How sunny is Pavillion?
Over a year 80% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Pavillion, 4.6 kWh per square metre a day. July is the sunniest month (87%) and December the cloudiest (71%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 77% | 2.1 |
| February | 77% | 3.1 |
| March | 76% | 4.3 |
| April | 75% | 5.5 |
| May | 76% | 6.4 |
| June | 84% | 7.5 |
| July | 87% | 7.3 |
| August | 86% | 6.4 |
| September | 85% | 5.1 |
| October | 78% | 3.4 |
| November | 76% | 2.3 |
| December | 71% | 1.7 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Pavillion need?
A normal year in Pavillion brings 7,647 heating degree days, 42% more than the median U.S. place (5,373), and 374 cooling degree days, 59% fewer than the median (908). Eight months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 2,117 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,342 | 0 |
| February | 1,102 | 0 |
| March | 874 | 0 |
| April | 620 | 0 |
| May | 361 | 4 |
| June | 125 | 48 |
| July | 15 | 177 |
| August | 31 | 126 |
| September | 203 | 18 |
| October | 605 | 0 |
| November | 1,007 | 0 |
| December | 1,364 | 0 |
| Year (annual) | 7,647 | 374 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00487115. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Has Pavillion been warmer than normal lately?
2025 averaged 47.0°F, 2.0°F above the 1991-2020 normal of 45.0°F. 3 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 47.2°F | +2.2°F | 6.76 | 33.9 |
| 2022 | 44.3°F | −0.7°F | 8.76 | 36.5 |
| 2023 | 40.9°F | −4.1°F | 15.88 | 40.1 |
| 2024 | 45.9°F | +0.9°F | 5.73 | 12.4 |
| 2025 | 47.0°F | +2.0°F | 9.72 | 16.4 |
Over 41 complete years from 1950 to 2025, the station's annual mean temperature rose at a fitted 1.3°F per century (+0.07°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00487115; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Pavillion's climate compare?
Pavillion is warmer than 42 of the other 70 places with their own NOAA record in Wyoming, and wetter than 14. Across the 7,247 U.S. stations with normals, its annual mean of 45.0°F is warmer than 19%.
In the Köppen classification computed from these normals, Pavillion is BSk: cold semi-arid steppe. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Pavillion share this climate record?
Johnstown has no NOAA station with 1991-2020 normals of its own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Johnstown, WY227 people · 9 mi S
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Pavillion's climate
What is the coldest month in Pavillion?
December, with a normal high of 33°F and a normal low of 9°F. The warmest is July (86°F by day, 55°F at night).
Does it snow in Pavillion?
Yes: 28 inches in a normal year, falling on 11 days with 0.1 inch or more, the most in April (4.9 inches).
What is the rainiest month in Pavillion?
May, with 2.09 in of precipitation in a normal year; the driest is January with 0.27 in.
What plant hardiness zone is Pavillion in?
The USDA's 2023 map puts Pavillion in zone 5a in ZIP code 82516, the nearest ZIP area.
How late can frost come in Pavillion?
In half of years the last 32°F night comes after May 14; in one year in ten it comes after May 29. Waiting until May 29 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Wyoming climateThe statewide normals and every place in the state
- Diversion Dam, WY11 miles from this station, 43.5°F a year
- Riverton, WY17 miles from this station, 44.5°F a year
- Boysen Dam, WY29 miles from this station, 46.4°F a year
- Shoshoni, WY29 miles from this station, 45.6°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made