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Laramie, Wyoming climate
BSk Cold semi-arid
Laramie has a seasonal cold-temperate climate (Cold semi-arid, Köppen BSk). The hottest month is July with an average daily high near 28°C, while the coldest is December averaging around −12°C at night. Precipitation totals about 269 mm a year and is strongly seasonal — May alone averages 48 mm while January barely receives 7 mm.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Laramie climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 2 | 3 | 8 | 12 | 17 | 24 | 28 | 27 | 22 | 15 | 7 | 2 |
| Avg temp (°C) | −5 | −4 | 1 | 4 | 9 | 15 | 18 | 17 | 13 | 6 | 0 | −5 |
| Avg low (°C) | −12 | −11 | −7 | −4 | 1 | 5 | 9 | 8 | 4 | −2 | −7 | −12 |
| Precipitation (mm) | 7 | 8 | 12 | 23 | 48 | 38 | 34 | 31 | 29 | 22 | 10 | 7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 2 | 3 | 8 | 12 | 17 | 24 |
| Avg temp (°C) | −5 | −4 | 1 | 4 | 9 | 15 |
| Avg low (°C) | −12 | −11 | −7 | −4 | 1 | 5 |
| Precipitation (mm) | 7 | 8 | 12 | 23 | 48 | 38 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 28 | 27 | 22 | 15 | 7 | 2 |
| Avg temp (°C) | 18 | 17 | 13 | 6 | 0 | −5 |
| Avg low (°C) | 9 | 8 | 4 | −2 | −7 | −12 |
| Precipitation (mm) | 34 | 31 | 29 | 22 | 10 | 7 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 62 | 64 | 64 | 66 | 65 | 50 | 50 | 51 | 47 | 52 | 59 | 62 |
| Relative humidity (%) | 77 | 74 | 64 | 61 | 58 | 49 | 47 | 48 | 49 | 57 | 65 | 75 |
| Wind speed (m/s) | 5.7 | 5.3 | 4.8 | 4.3 | 3.5 | 3.2 | 2.8 | 2.8 | 3.2 | 4.0 | 4.8 | 5.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 62 | 64 | 64 | 66 | 65 | 50 |
| Relative humidity (%) | 77 | 74 | 64 | 61 | 58 | 49 |
| Wind speed (m/s) | 5.7 | 5.3 | 4.8 | 4.3 | 3.5 | 3.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 50 | 51 | 47 | 52 | 59 | 62 |
| Relative humidity (%) | 47 | 48 | 49 | 57 | 65 | 75 |
| Wind speed (m/s) | 2.8 | 2.8 | 3.2 | 4.0 | 4.8 | 5.4 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Laramie Regional Airport, a weather station, about 7 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.