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Casper City Climate
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Flat Fee MLS available for your ZIPCasper (zip 82601), WY, gets 13 inches of rain per year. The US average is 37. Snowfall is 52 inches. The average US city gets 25 inches of snow per year. The number of days with any measurable precipitation is 75.
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Temperature
| Temperature | Year | Jan. | Feb. | Mar. | Apr. | May | June | July | Aug. | Sep. | Oct. | Nov. | Dec. |
| Days warmer than 90 degrees F | 28 | 0 | 0 | 0 | 0 | Tr | 4 | 13 | 10 | 1 | 0 | 0 | 0 |
| Days warmer than 65 degrees F | 155 | 0 | Tr | 1 | 9 | 18 | 27 | 31 | 30 | 24 | 14 | 1 | 0 |
| Days cooler than 32 degrees F | 180 | 29 | 26 | 27 | 19 | 6 | Tr | Tr | 0 | 3 | 15 | 25 | 29 |
| Days cooler than 5 degrees F | 28 | 9 | 5 | 3 | Tr | 0 | 0 | 0 | 0 | 0 | Tr | 3 | 7 |
| Dewpoint degrees F | 27 | 12 | 15 | 19 | 25 | 34 | 40 | 43 | 41 | 33 | 26 | 19 | 14 |
Precipitation
| Precipitation | Year | Jan. | Feb. | Mar. | Apr. | May | June | July | Aug. | Sep. | Oct. | Nov. | Dec. |
| Days with precipitation | 154 | 12 | 12 | 15 | 15 | 17 | 14 | 14 | 12 | 10 | 10 | 11 | 12 |
| Days w/ precip. > .01 in. | 95 | 7 | 8 | 10 | 10 | 11 | 8 | 8 | 6 | 6 | 7 | 7 | 7 |
| Days w/ precip. > .5 in. | 5 | Tr | 0 | Tr | 1 | 1 | 1 | Tr | Tr | Tr | Tr | Tr | Tr |
| Days w/ snow > .01 in. | 53 | 8 | 8 | 9 | 7 | 2 | Tr | 0 | 0 | 1 | 3 | 7 | 8 |
| Days w/ snow > 1.5 in. | 17 | 2 | 2 | 3 | 3 | 1 | Tr | 0 | 0 | Tr | 1 | 2 | 2 |
| Days with rain | 91 | 1 | 1 | 3 | 9 | 16 | 14 | 14 | 12 | 10 | 7 | 3 | 1 |
| Days with snow | 81 | 12 | 11 | 14 | 11 | 3 | Tr | 0 | 0 | 2 | 6 | 10 | 12 |
| Days w/ freezing rain | Tr | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | Tr | 0 |
| Days with hail | 3 | 0 | 0 | 0 | Tr | 1 | 1 | 1 | Tr | Tr | Tr | 0 | 0 |
Miscellaneous
| Miscellaneous | Year | Jan. | Feb. | Mar. | Apr. | May | June | July | Aug. | Sep. | Oct. | Nov. | Dec. |
| Humidity (5 a.m.) % relative | 69 | 67 | 70 | 73 | 74 | 77 | 74 | 67 | 64 | 66 | 65 | 68 | 67 |
| Humidity (5 p.m.) % relative | 43 | 60 | 57 | 49 | 41 | 39 | 31 | 25 | 24 | 30 | 39 | 56 | 61 |
| Windspeed (avg) knots | 14 | 18 | 16 | 15 | 14 | 13 | 11 | 10 | 12 | 13 | 14 | 16 | 17 |
| Wind direction | SW | SW | SW | SW | SW | SW | WSW | WSW | SW | SW | SW | SW | SW |
| Max. wind gust MPH | 60 | 58 | 58 | 56 | 60 | 56 | 54 | 58 | 58 | 55 | 54 | 52 | 58 |
| Skycover clear, scattered, broken, overcast | Ovr | Ovr | Ovr | Ovr | Ovr | Ovr | Clr | Clr | Clr | Clr | Clr | Ovr | Ovr |
| Days with thunderstorms | 34 | 0 | Tr | Tr | 1 | 6 | 8 | 9 | 7 | 3 | Tr | Tr | 0 |
| Days with fog | 37 | 3 | 4 | 5 | 5 | 4 | 2 | 1 | 1 | 3 | 3 | 3 | 3 |
| Vapor pressure inches of mercury | 0.15 | 0.07 | 0.08 | 0.11 | 0.14 | 0.19 | 0.25 | 0.28 | 0.25 | 0.19 | 0.14 | 0.11 | 0.08 |
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