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Aurora, Colorado climate
BSk Cold semi-arid
Aurora has a seasonal cool-temperate climate (Cold semi-arid, Köppen BSk). The hottest month is July with an average daily high near 32°C, while the coldest is December averaging around −8°C at night. Precipitation totals about 368 mm a year and is strongly seasonal — May alone averages 55 mm while December barely receives 9 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)Aurora climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 7 | 8 | 13 | 17 | 22 | 29 | 32 | 31 | 26 | 19 | 12 | 7 |
| Avg temp (°C) | 0 | 0 | 5 | 9 | 14 | 20 | 24 | 23 | 18 | 11 | 4 | 0 |
| Avg low (°C) | −7 | −7 | −3 | 1 | 6 | 12 | 16 | 15 | 10 | 3 | −3 | −8 |
| Precipitation (mm) | 10 | 10 | 22 | 43 | 55 | 49 | 54 | 40 | 34 | 25 | 16 | 9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 7 | 8 | 13 | 17 | 22 | 29 |
| Avg temp (°C) | 0 | 0 | 5 | 9 | 14 | 20 |
| Avg low (°C) | −7 | −7 | −3 | 1 | 6 | 12 |
| Precipitation (mm) | 10 | 10 | 22 | 43 | 55 | 49 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 32 | 31 | 26 | 19 | 12 | 7 |
| Avg temp (°C) | 24 | 23 | 18 | 11 | 4 | 0 |
| Avg low (°C) | 16 | 15 | 10 | 3 | −3 | −8 |
| Precipitation (mm) | 54 | 40 | 34 | 25 | 16 | 9 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 57 | 57 | 56 | 59 | 58 | 49 | 50 | 50 | 43 | 46 | 51 | 55 |
| Relative humidity (%) | 57 | 55 | 51 | 49 | 50 | 44 | 44 | 46 | 44 | 49 | 54 | 58 |
| Wind speed (mph) | 5.3 | 5.9 | 6.4 | 6.7 | 5.8 | 5.5 | 5.2 | 5.0 | 5.1 | 5.3 | 5.1 | 5.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 57 | 57 | 56 | 59 | 58 | 49 |
| Relative humidity (%) | 57 | 55 | 51 | 49 | 50 | 44 |
| Wind speed (mph) | 5.3 | 5.9 | 6.4 | 6.7 | 5.8 | 5.5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 50 | 50 | 43 | 46 | 51 | 55 |
| Relative humidity (%) | 44 | 46 | 44 | 49 | 54 | 58 |
| Wind speed (mph) | 5.2 | 5.0 | 5.1 | 5.3 | 5.1 | 5.0 |
30-year delta table (1991–2020 minus 1981–2010, °F)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Δ Max temp | +0.6 | -0.5 | +1.3 | +0.2 | -0.3 | +1.0 | +0.5 | +0.3 | +1.1 | +0.0 | +0.8 | +1.2 |
| Δ Avg temp | +1.0 | +0.2 | +1.2 | +0.4 | +0.3 | +0.8 | +0.9 | +0.4 | +1.4 | +0.2 | +1.1 | +1.2 |
| Δ Min temp | +1.3 | +0.8 | +1.1 | +0.6 | +0.9 | +0.7 | +1.3 | +0.4 | +1.7 | +0.4 | +1.5 | +1.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Δ Max temp | +0.6 | -0.5 | +1.3 | +0.2 | -0.3 | +1.0 |
| Δ Avg temp | +1.0 | +0.2 | +1.2 | +0.4 | +0.3 | +0.8 |
| Δ Min temp | +1.3 | +0.8 | +1.1 | +0.6 | +0.9 | +0.7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Δ Max temp | +0.5 | +0.3 | +1.1 | +0.0 | +0.8 | +1.2 |
| Δ Avg temp | +0.9 | +0.4 | +1.4 | +0.2 | +1.1 | +1.2 |
| Δ Min temp | +1.3 | +0.4 | +1.7 | +0.4 | +1.5 | +1.3 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Denver Intl AP (NOAA GHCN station USW00003017), about 20 km from the city centre.
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.