Casper
The tables below display average monthly climate and weather indicators in Casper Wyoming.
Temperature by: Fahrenheit / Centigrade
| Casper Temperature |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Avg. Temperature | -5.3 | -3.1 | 0.8 | 6.0 | 11.3 | 17.1 | 21.6 | 20.4 | 14.3 | 8.0 | 0.6 | -4.6 | 7.3 |
| Avg. Max Temperature | 0.4 | 2.8 | 7.3 | 13.4 | 19.2 | 25.9 | 30.9 | 29.8 | 23.2 | 15.8 | 6.8 | 1.1 | 14.7 |
| Avg. Min Temperature | -11.1 | -8.9 | -5.7 | -1.4 | 3.3 | 8.3 | 12.2 | 11.0 | 5.3 | 0.1 | -5.7 | -10.2 | -0.2 |
| Days with Max Temp of 32 C or Higher | 0.0 | 0.0 | 0.0 | 0.0 | < 0.5 | 4.0 | 13.0 | 11.0 | 2.0 | 0.0 | 0.0 | 0.0 | 30.0 |
| Days with Min Temp Below Freezing | 29.0 | 26.0 | 26.0 | 19.0 | 7.0 | < 0.5 | < 0.5 | 0.0 | 4.0 | 16.0 | 25.0 | 28.0 | 181 |
| |
|
| Casper Heating and Cooling |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Heating Degree Days | 1321 | 1078 | 977 | 666 | 394 | 139 | 10.0 | 36.0 | 250 | 577 | 957 | 1277 | 7682 |
| Cooling Degree Days | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 70.0 | 190 | 151 | 34.0 | 0.0 | 0.0 | 0.0 | 445 |
| |
|
| Casper Precipitation |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Precipitation (inches) | 0.6 | 0.6 | 1.0 | 1.6 | 2.1 | 1.5 | 1.3 | 0.7 | 0.9 | 1.0 | 0.8 | 0.7 | 12.5 |
| Days with Precipitation 0.01 inch or More | 7.0 | 8.0 | 9.0 | 10.0 | 11.0 | 9.0 | 8.0 | 6.0 | 7.0 | 7.0 | 7.0 | 7.0 | 96.0 |
| Monthly Snowfall (inches) | 10.1 | 10.4 | 13.4 | 12.4 | 3.7 | 0.2 | < 0.05 | < 0.05 | 1.3 | 6.1 | 10.9 | 10.9 | 79.4 |
| |
|
| Other Casper Weather Indicators |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Average Wind Speed | 16.2 | 14.8 | 13.7 | 12.5 | 11.6 | 10.9 | 10.1 | 10.3 | 10.9 | 11.9 | 14.4 | 16.0 | 12.8 |
| Clear Days | 7.0 | 6.0 | 6.0 | 5.0 | 6.0 | 10.0 | 14.0 | 13.0 | 13.0 | 11.0 | 7.0 | 8.0 | 107 |
| Partly Cloudy Days | 8.0 | 8.0 | 9.0 | 9.0 | 11.0 | 11.0 | 11.0 | 11.0 | 9.0 | 8.0 | 8.0 | 8.0 | 111 |
| Cloudy Days | 16.0 | 14.0 | 16.0 | 16.0 | 15.0 | 9.0 | 6.0 | 7.0 | 8.0 | 12.0 | 14.0 | 15.0 | 147 |
| Percent of Possible Sunshine | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Avg. Relative Humidity | 50.0 | 64.0 | 62.5 | 60.0 | 60.0 | 58.0 | 52.0 | 47.0 | 46.0 | 49.5 | 55.5 | 62.5 | 66.0 |
Weather information for other cities in Wyoming