Weather and climate in Aurora, CO
What the weather is like in Aurora
The warmest month in Aurora is July, with average highs of 86°F. The coolest is December, when nights average 18°F. About 17.3 in of rain and snow falls in a typical year, most in July and least in January.
Skies are clearest in September (38% average cloud cover) and cloudiest in February (57%). Combining cloud with the length of truly dark nights, November, October, September offer the most clear, dark hours for stargazing.
Clear, dark hours per night
Hours of full astronomical darkness in mid-month, multiplied by the average share of clear sky. A rough guide to how much good observing time a typical night offers.
Monthly averages
| Month | High | Low | Precipitation | Cloud cover | Humidity | Wind | Dark hours |
|---|---|---|---|---|---|---|---|
| January | 40°F | 18°F | 0.7 in | 56% | 55% | 6 mph | 11.1 h |
| February | 41°F | 18°F | 0.8 in | 57% | 56% | 6 mph | 10.2 h |
| March | 51°F | 25°F | 1.3 in | 55% | 52% | 6 mph | 9.0 h |
| April | 59°F | 31°F | 2.0 in | 55% | 50% | 7 mph | 7.5 h |
| May | 69°F | 40°F | 2.3 in | 56% | 49% | 6 mph | 5.9 h |
| June | 83°F | 51°F | 1.7 in | 46% | 41% | 5 mph | 5.0 h |
| July | 86°F | 58°F | 2.4 in | 47% | 45% | 5 mph | 5.5 h |
| August | 83°F | 55°F | 2.1 in | 47% | 46% | 5 mph | 6.9 h |
| September | 76°F | 47°F | 1.4 in | 38% | 44% | 5 mph | 8.5 h |
| October | 62°F | 34°F | 1.2 in | 44% | 48% | 5 mph | 9.9 h |
| November | 49°F | 25°F | 0.7 in | 48% | 51% | 5 mph | 10.9 h |
| December | 39°F | 18°F | 0.7 in | 56% | 56% | 6 mph | 11.4 h |
Climate nearby
Climate averages: NASA POWER, 2001–2025, for the grid area around 39.50, -105.00 (about 50 km across). High and low temperatures are estimated from the monthly mean and the average daily range. Hills, coasts and cities can differ from the area average. Aurora outlook for Aurora · Sources and methods.