Climate of Casper
Casper has a semi-arid climate. It hardly rains here. The average annual temperature for Casper is 12° degrees and there is about 198 mm of rain in a year. It is dry for 209 days a year with an average humidity of 58% and an UV-index of 3.
Climate averages for the whole year
- Day: the average daily temperature during the day is between -2°C and 28°C
- Night:the average nighttime temperature is between -9°C and 16°C
- Rain: it rains 85 days and there is a total of approximately 195 mm rainfall
- Snow: it snows an average of 59 days per year
- Sun hours: throughout the year there are 3366 sun hours
Maximum temperature: | between -2°C and 28°C |
Warmest month: | 28°C in July |
Coldest month: | -2°C in January |
Night temperature: | between -9°C and 16°C |
Dry days: | 221 days |
Days with rain: | 85 days |
Days with snow: | 59 days |
Total rain sum: | 195 mm |
Hours of sunshine: | 3366 hours |
Do you want to go to Casper?
These are the travel companies where you can book a trip to Casper:
Temperature graph
This graph shows the average maximum temperature (red) and minimum temperature (blue) for Casper.
Precipitation graph
This graph shows the average amount of rainfall per month for Casper.
Climate table of Casper
In this climate table you can see at a glance what the average weather per month is for Casper. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for Casper might be like in a given month.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Day temp. (°C) | -2 | -1 | 6 | 10 | 16 | 24 | 28 | 27 | 23 | 13 | 5 | -2 |
Night temp. (°C) | -9 | -9 | -3 | 0 | 5 | 11 | 16 | 15 | 11 | 3 | -3 | -9 |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
Precipitation (mm) | 10 | 12 | 21 | 27 | 31 | 18 | 12 | 10 | 9 | 19 | 14 | 12 |
Days with rain | 4 | 5 | 7 | 12 | 12 | 9 | 7 | 6 | 7 | 7 | 5 | 4 |
Days with snow | 10 | 11 | 8 | 7 | 1 | - | - | - | - | 5 | 7 | 10 |
Dry days | 17 | 12 | 16 | 11 | 18 | 21 | 24 | 25 | 23 | 19 | 18 | 17 |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
Sun hours per day | 6 | 6 | 9 | 10 | 11 | 12 | 12 | 12 | 11 | 7 | 7 | 6 |
Wind force (Bft) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
UV-index | 2 | 2 | 2 | 2 | 4 | 6 | 6 | 6 | 4 | 3 | 2 | 2 |
Best time to visit Casper
The best time to visit Casper in the state of Wyoming is from June through September. In this period you have a warm temperature and almost no precipitation. The highest average temperature in Casper is 28°C in July and the lowest is -2°C in January.
Climate of Casper by month
What is the average climate in a given month for Casper? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.
Casper weather experiences
Have you been to in Casper?
Leave your Casper weather experience for a chance to win $150!