Rawlins, Wyoming climate: Normal weather by month, frost dates and records
Rawlins's normal year runs from 13°F December nights to 85°F July afternoons, with 9.0 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 6.2°C, December lows of −11°C, July highs of 30°C, 230 mm of precipitation a year.
- NOAA stationRawlins Municipal Airport
- Station IDUSW00024057
- Location41.81°N 107.20°W
- Elevation6,736 ft (2,053 m)
- Population7,952
On October 23, the normal high in Rawlins is 53°F and the normal low 28°F, and the chance of measurable rain or snow is 22%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Rawlins.
- Jan 32° 13°
- Feb 34° 15°
- Mar 45° 22°
- Apr 54° 27°
- May 64° 36°
- Jun 77° 43°
- Jul 85° 51°
- Aug 83° 49°
- Sep 72° 41°
- Oct 57° 30°
- Nov 42° 21°
- Dec 31° 13°
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 Rawlins each month?
July is the warmest month, with normal highs of 85°F; December the coldest, with normal lows of 13°F. The most precipitation falls in May (1.46 in), the least in December (0.40 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 32°F | 13°F | 22.3°F | 0.42 | 6 | <1 | 30 | 9 h 30 min |
| February | 34°F | 15°F | 24.2°F | 0.48 | 6 | <1 | 27 | 10 h 30 min |
| March | 45°F | 22°F | 33.6°F | 0.66 | 7 | <1 | 27 | 11 h 50 min |
| April | 54°F | 27°F | 40.4°F | 1.26 | 10 | <1 | 22 | 13 h 20 min |
| May | 64°F | 36°F | 49.8°F | 1.46 | 10 | <1 | 9 | 14 h 30 min |
| June | 77°F | 43°F | 59.9°F | 0.87 | 7 | 2 | 1 | 15 h 10 min |
| July | 85°F | 51°F | 67.9°F | 0.72 | 6 | 9 | <1 | 15 h |
| August | 83°F | 49°F | 65.8°F | 0.73 | 6 | 4 | <1 | 13 h 50 min |
| September | 72°F | 41°F | 56.5°F | 0.89 | 6 | 1 | 4 | 12 h 30 min |
| October | 57°F | 30°F | 43.6°F | 0.68 | 7 | <1 | 17 | 11 h 10 min |
| November | 42°F | 21°F | 31.3°F | 0.47 | 6 | <1 | 25 | 9 h 50 min |
| December | 31°F | 13°F | 22.1°F | 0.40 | 6 | <1 | 30 | 9 h 10 min |
| Year (annual) | 56°F | 30°F | 43.1°F | 9.04 | 82 | 15 | 192 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 0°C | −10°C | −5.4°C | 11 mm |
| February | 1°C | −10°C | −4.3°C | 12 mm |
| March | 7°C | −6°C | 0.9°C | 17 mm |
| April | 12°C | −3°C | 4.7°C | 32 mm |
| May | 18°C | 2°C | 9.9°C | 37 mm |
| June | 25°C | 6°C | 15.5°C | 22 mm |
| July | 30°C | 10°C | 19.9°C | 18 mm |
| August | 28°C | 10°C | 18.8°C | 19 mm |
| September | 22°C | 5°C | 13.6°C | 23 mm |
| October | 14°C | −1°C | 6.4°C | 17 mm |
| November | 5°C | −6°C | −0.4°C | 12 mm |
| December | 0°C | −11°C | −5.5°C | 10 mm |
NOAA publishes no 1991-2020 snowfall normal for this station, and no record within 25 miles keeps one, so snow is left out here rather than estimated.
Source: NOAA NCEI 1991-2020 monthly normals, station USW00024057; 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 Rawlins?
Normal highs sit between 65°F and 85°F in June, August and September. Of those, August has the fewest days with rain (6).
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 USW00024057.
When is the last frost in Rawlins?
In Rawlins, the last spring frost (32°F) comes after June 1 in half of years and after June 17 in one year in ten; the first autumn frost comes before September 15 in half of years and before September 3 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
- June 11 year in 10 after June 17; 9 in 10 after May 17
- First autumn frost, half of years before
- September 151 year in 10 before September 3; 9 in 10 before September 29
NOAA puts the median frost-free season at 105 days, and the season without a hard freeze (28°F) at 130 days.
A hard freeze (28°F) comes after May 17 in half of springs and before September 26 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Rawlins in zone 5a in ZIP code 82334, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Rawlins's NOAA station is in zone 5a: the coldest night of a typical year reaches −20°F (29 complete years).
Frost dates for every NOAA station in Wyoming · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USW00024057; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. 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 Rawlins?
In a normal year in Rawlins, 15 days a year reach 90°F, 192 nights fall to 32°F or colder and 82 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
- 192a normal year
- Days that stay below freezing
- 53high of 32°F or less
- Days with 0.01 inch of precipitation
- 82a normal year
The highest temperature in this station's record (since 1951) is 98°F, on July 12, 1954; the lowest is −36°F, on January 19, 1963.
The wettest calendar year on that record is 2009, with 16.06 in; the snowiest season is 1972–73, with 105.2 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USW00024057; records: ACIS (NOAA Regional Climate Centers), station USW00024057. Records use complete months only; a month missing more than three days is left out.
How sunny is Rawlins?
Over a year 79% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Rawlins, 4.7 kWh per square metre a day. July is the sunniest month (86%) and December the cloudiest (68%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 73% | 2.3 |
| February | 72% | 3.1 |
| March | 73% | 4.4 |
| April | 74% | 5.6 |
| May | 77% | 6.7 |
| June | 85% | 7.7 |
| July | 86% | 7.4 |
| August | 86% | 6.5 |
| September | 85% | 5.3 |
| October | 79% | 3.7 |
| November | 73% | 2.4 |
| December | 68% | 1.8 |
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 Rawlins need?
A normal year in Rawlins brings 8,168 heating degree days, 52% more than the median U.S. place (5,373), and 224 cooling degree days, 75% 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 1,727 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,322 | 0 |
| February | 1,142 | 0 |
| March | 975 | 0 |
| April | 738 | 0 |
| May | 470 | 1 |
| June | 174 | 21 |
| July | 26 | 118 |
| August | 51 | 77 |
| September | 263 | 8 |
| October | 663 | 0 |
| November | 1,011 | 0 |
| December | 1,331 | 0 |
| Year (annual) | 8,168 | 224 |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00024057. 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 Rawlins been warmer than normal lately?
2025 averaged 46.2°F, 3.1°F above the 1991-2020 normal of 43.1°F. 4 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 45.0°F | +1.9°F | 9.63 |
| 2022 | 43.4°F | +0.3°F | 6.61 |
| 2023 | 42.8°F | −0.4°F | 14.40 |
| 2024 | 46.0°F | +2.9°F | 8.24 |
| 2025 | 46.2°F | +3.1°F | 8.56 |
Over 69 complete years from 1952 to 2025, the station's annual mean temperature rose at a fitted 4.3°F per century (+0.24°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USW00024057; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Rawlins's climate compare?
Rawlins is warmer than 24 of the other 70 places with their own NOAA record in Wyoming, and wetter than 15. Across the 7,247 U.S. stations with normals, its annual mean of 43.1°F is warmer than 12%.
In the Köppen classification computed from these normals, Rawlins 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 Rawlins share this climate record?
Sinclair 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.
- Sinclair, WY361 people · 5 mi SE
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
What do Rawlins's other NOAA stations record?
One more NOAA station keeps 1991-2020 normals in or near Rawlins. This page uses Rawlins Municipal Airport; the other differs by site and elevation:
| Station | From this station | Elevation | Year | Jan low | Jul high | Precip. | Snow | Last frost |
|---|---|---|---|---|---|---|---|---|
| Rawlins (1 mi N) USC00487529 | 2 mi W | 6,908 ft | 43.8°F | 15°F | 82°F | 16.9 | – | May 17 |
Source: NOAA NCEI 1991-2020 normals for each station. Last frost: the median last spring date of 32°F.
Questions about Rawlins's climate
What is the coldest month in Rawlins?
December, with a normal high of 31°F and a normal low of 13°F. The warmest is July (85°F by day, 51°F at night).
What is the rainiest month in Rawlins?
May, with 1.46 in of precipitation in a normal year; the driest is December with 0.40 in.
What plant hardiness zone is Rawlins in?
The USDA's 2023 map puts Rawlins in zone 5a in ZIP code 82334, the nearest ZIP area. By the same method at Rawlins's NOAA station, the coldest night of a typical year reaches −20°F (29 years, 1991-2020): zone 5a.
How late can frost come in Rawlins?
In half of years the last 32°F night comes after June 1; in one year in ten it comes after June 17. Waiting until June 17 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Wyoming climateThe statewide normals and every place in the state
- Seminoe Reservoir USBR, WY29 miles from this station, 43.9°F a year
- Saratoga, WY32 miles from this station, 43.7°F a year
- Leo (6 mi SW), WY32 miles from this station, 45.9°F a year
- Muddy Gap, WY40 miles from this station, 45.4°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made