Laramie, Wyoming climate: Normal weather by month, frost dates and records
Laramie's normal year runs from 10°F December nights to 81°F July afternoons, with 10.5 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 5.2°C, December lows of −12°C, July highs of 27°C, 267 mm of precipitation a year.
- NOAA stationLaramie Regional Airport
- Station IDUSW00024022
- Location41.31°N 105.67°W
- Elevation7,266 ft (2,215 m)
- Population32,957
On October 23, the normal high in Laramie is 53°F and the normal low 25°F, and the chance of measurable rain or snow is 19%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Laramie.
- Jan 33° 10°
- Feb 36° 12°
- Mar 45° 19°
- Apr 51° 25°
- May 62° 33°
- Jun 74° 42°
- Jul 81° 49°
- Aug 79° 47°
- Sep 70° 39°
- Oct 56° 28°
- Nov 43° 18°
- Dec 33° 10°
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 Laramie each month?
July is the warmest month, with normal highs of 81°F; December the coldest, with normal lows of 10°F. The most precipitation falls in May (1.75 in), the least in January (0.28 in).
Each month has its own page with the day-by-day normals, the month's records and its recent years:
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 33°F | 10°F | 21.9°F | 0.28 | 4 | <1 | 31 | 9 h 30 min |
| February | 36°F | 12°F | 23.8°F | 0.32 | 5 | <1 | 27 | 10 h 40 min |
| March | 45°F | 19°F | 31.8°F | 0.48 | 6 | <1 | 29 | 11 h 50 min |
| April | 51°F | 25°F | 37.9°F | 1.04 | 9 | <1 | 26 | 13 h 20 min |
| May | 62°F | 33°F | 47.5°F | 1.75 | 11 | <1 | 13 | 14 h 30 min |
| June | 74°F | 42°F | 58.0°F | 1.49 | 8 | 1 | 1 | 15 h 10 min |
| July | 81°F | 49°F | 64.8°F | 1.34 | 9 | 2 | <1 | 14 h 50 min |
| August | 79°F | 47°F | 62.8°F | 1.14 | 9 | <1 | <1 | 13 h 50 min |
| September | 70°F | 39°F | 54.3°F | 1.11 | 7 | <1 | 6 | 12 h 30 min |
| October | 56°F | 28°F | 41.9°F | 0.83 | 6 | <1 | 21 | 11 h 10 min |
| November | 43°F | 18°F | 30.2°F | 0.42 | 5 | <1 | 28 | 9 h 50 min |
| December | 33°F | 10°F | 21.5°F | 0.32 | 5 | <1 | 30 | 9 h 10 min |
| Year (annual) | 55°F | 28°F | 41.4°F | 10.52 | 86 | 3 | 212 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 1°C | −12°C | −5.6°C | 7 mm |
| February | 2°C | −11°C | −4.6°C | 8 mm |
| March | 7°C | −7°C | −0.1°C | 12 mm |
| April | 11°C | −4°C | 3.3°C | 26 mm |
| May | 16°C | 1°C | 8.6°C | 44 mm |
| June | 23°C | 6°C | 14.4°C | 38 mm |
| July | 27°C | 9°C | 18.2°C | 34 mm |
| August | 26°C | 8°C | 17.1°C | 29 mm |
| September | 21°C | 4°C | 12.4°C | 28 mm |
| October | 13°C | −2°C | 5.5°C | 21 mm |
| November | 6°C | −8°C | −1.0°C | 11 mm |
| December | 0°C | −12°C | −5.8°C | 8 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. Laramie's own co-op station Laramie (4 mi SE) does: 64 inches of snow in a normal year (see the other stations below).
Source: NOAA NCEI 1991-2020 monthly normals, station USW00024022; 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 Laramie?
Normal highs sit between 65°F and 85°F in June, July, August and September. Of those, September has the fewest days with rain (7).
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 USW00024022.
When is the last frost in Laramie?
In Laramie, the last spring frost (32°F) comes after June 2 in half of years and after June 18 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 21 year in 10 after June 18; 9 in 10 after May 21
- First autumn frost, half of years before
- September 151 year in 10 before September 3; 9 in 10 before September 27
NOAA puts the median frost-free season at 102 days, and the season without a hard freeze (28°F) at 125 days.
A hard freeze (28°F) comes after May 20 in half of springs and before September 24 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Laramie in zone 4a in ZIP code 82072, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Laramie's NOAA station is in zone 4b: the coldest night of a typical year reaches −24°F (30 complete years); the map interpolates between stations and terrain, so the station and the ZIP area can differ by half a zone.
Frost dates for every NOAA station in Wyoming · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USW00024022; 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 Laramie?
In a normal year in Laramie, 3 days a year reach 90°F, 212 nights fall to 32°F or colder and 86 days bring measurable precipitation.
- Days at 90°F or more
- 3a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 212a normal year
- Days that stay below freezing
- 54high of 32°F or less
- Days with 0.01 inch of precipitation
- 86a normal year
The highest temperature in this station's record (since 1948) is 94°F, on June 23, 1954; the lowest is −50°F, on January 12, 1963.
The wettest calendar year on that record is 1991, with 16.60 in; the snowiest season is 1972–73, with 124.8 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USW00024022; records: ACIS (NOAA Regional Climate Centers), station USW00024022. Records use complete months only; a month missing more than three days is left out.
How humid and windy is Laramie, and how clear are its skies?
The summer (June-August) dew point averages 40°F. The muggiest month is July, with an average dew point of 44°F; the driest air comes in December (10°F). February is the windiest month (13.6 mph on average), and June has the most clear or nearly clear hours (75%).
| Month | Dew point | Humidity | Afternoon humidity | Wind | Clear or few clouds | Overcast |
|---|---|---|---|---|---|---|
| January | 12°F | 63% | 50% | 13.0 mph | 64% | 21% |
| February | 13°F | 58% | 42% | 13.6 mph | 62% | 21% |
| March | 19°F | 55% | 35% | 13.1 mph | 57% | 24% |
| April | 26°F | 55% | 35% | 12.8 mph | 53% | 26% |
| May | 36°F | 54% | 34% | 11.7 mph | 60% | 19% |
| June | 39°F | 45% | 24% | 10.7 mph | 75% | 7% |
| July | 44°F | 51% | 28% | 9.6 mph | 71% | 10% |
| August | 38°F | 47% | 25% | 10.1 mph | 70% | 10% |
| September | 29°F | 49% | 27% | 11.2 mph | 73% | 14% |
| October | 20°F | 55% | 36% | 12.0 mph | 67% | 19% |
| November | 12°F | 59% | 47% | 13.0 mph | 68% | 19% |
| December | 10°F | 64% | 54% | 13.0 mph | 66% | 20% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00024022. Monthly averages of all hours; afternoon humidity at 3 p.m. local standard time; sky as the share of hours NOAA's observations rate clear or few clouds (a dash where NOAA publishes no sky value).
How sunny is Laramie?
Over a year 77% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Laramie, 4.6 kWh per square metre a day. September is the sunniest month (82%) and April the cloudiest (71%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 77% | 2.4 |
| February | 76% | 3.3 |
| March | 75% | 4.5 |
| April | 71% | 5.3 |
| May | 72% | 6.2 |
| June | 81% | 7.2 |
| July | 81% | 6.9 |
| August | 81% | 6.0 |
| September | 82% | 5.1 |
| October | 77% | 3.6 |
| November | 76% | 2.5 |
| December | 73% | 2.0 |
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 Laramie need?
A normal year in Laramie brings 8,677 heating degree days, 61% more than the median U.S. place (5,373), and 85 cooling degree days, 91% fewer than the median (908). Nine months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 1,371 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,338 | 0 |
| February | 1,152 | 0 |
| March | 1,028 | 0 |
| April | 815 | 0 |
| May | 544 | 0 |
| June | 221 | 10 |
| July | 56 | 49 |
| August | 94 | 24 |
| September | 321 | 2 |
| October | 716 | 0 |
| November | 1,043 | 0 |
| December | 1,350 | 0 |
| Year (annual) | 8,677 | 85 |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00024022. 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 Laramie been warmer than normal lately?
2025 averaged 44.7°F, 3.3°F above the 1991-2020 normal of 41.4°F. 5 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 43.0°F | +1.6°F | 9.23 |
| 2022 | 41.5°F | +0.1°F | 6.38 |
| 2023 | 42.6°F | +1.2°F | 9.50 |
| 2024 | 46.2°F | +4.8°F | 10.06 |
| 2025 | 44.7°F | +3.3°F | 11.32 |
Over 134 complete years from 1870 to 2025, the station's annual mean temperature rose at a fitted 2.7°F per century (+0.15°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USW00024022; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Laramie's climate compare?
Laramie is warmer than 19 of the other 70 places with their own NOAA record in Wyoming, and wetter than 22. Across the 7,247 U.S. stations with normals, its annual mean of 41.4°F is warmer than 8%.
In the Köppen classification computed from these normals, Laramie 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.
What do Laramie's other NOAA stations record?
2 more NOAA stations keep 1991-2020 normals in or near Laramie. This page uses Laramie Regional Airport; the others differ by site and elevation:
| Station | From this station | Elevation | Year | Jan low | Jul high | Precip. | Snow | Last frost |
|---|---|---|---|---|---|---|---|---|
| Laramie (2 mi NW) USC00485435 | 4 mi NE | 7,140 ft | 40.6°F | 8°F | 81°F | 10.9 | – | June 7 |
| Laramie (4 mi SE) USC00485417 | 8 mi E | 7,390 ft | 43.0°F | 12°F | 81°F | 13.1 | 64 | May 22 |
Source: NOAA NCEI 1991-2020 normals for each station. Last frost: the median last spring date of 32°F.
Questions about Laramie's climate
What is the coldest month in Laramie?
December, with a normal high of 33°F and a normal low of 10°F. The warmest is July (81°F by day, 49°F at night).
Does it snow in Laramie?
Yes. NOAA publishes no 1991-2020 snowfall normal for Laramie's NOAA station; Laramie's own co-op station Laramie (4 mi SE) records 64 inches of snow in a normal year.
What is the rainiest month in Laramie?
May, with 1.75 in of precipitation in a normal year; the driest is January with 0.28 in.
What plant hardiness zone is Laramie in?
The USDA's 2023 map puts Laramie in zone 4a in ZIP code 82072, the nearest ZIP area. By the same method at Laramie's NOAA station, the coldest night of a typical year reaches −24°F (30 years, 1991-2020): zone 4b.
How late can frost come in Laramie?
In half of years the last 32°F night comes after June 2; in one year in ten it comes after June 18. Waiting until June 18 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Laramie in OctoberThis month day by day, its records and recent years
- Wyoming climateThe statewide normals and every place in the state
- Centennial, WY24 miles from this station, 40.6°F a year
- Hecla (1 mi E), WY29 miles from this station, 45.0°F a year
- Hohnholz Ranch, CO29 miles from this station, 39.1°F a year
- Virginia Dale (7 mi ENE), CO34 miles from this station, 43.6°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made