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The weather in Wyoming in May is very cold with temperatures between -3°C and 9°C, warm clothes are a must.
There’s going to be many days of rain during the month of May in Wyoming.
Wyoming should expect an average of 15 to 22 days of rain, so be sure to bring along a waterproof jacket to stay dry this month!
Let it snow! You can expect Wyoming to be covered in white during the month of May. Be sure to bundle up when you venture outside, or take the opportunity to enjoy hot cocoa by the fire for warmth this month.
Our weather forecast can give you a great sense of what weather to expect in Wyoming in May 2025.
If you’re planning to visit Wyoming in the near future, we highly recommend that you review the 14 day weather forecast for Wyoming before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -6° / -15° | 3 | 5 | 24 | 112 mm | Awful | Wyoming in January |
| February | -6° / -15° | 4 | 1 | 25 | 118 mm | Awful | Wyoming in February |
| March | -1° / -11° | 6 | 1 | 27 | 129 mm | Awful | Wyoming in March |
| April | 2° / -8° | 7 | 2 | 26 | 141 mm | Awful | Wyoming in April |
| May | 9° / -3° | 15 | 2 | 22 | 163 mm | Awful | Wyoming in May |
| June | 16° / 3° | 10 | 11 | 8 | 113 mm | Bad | Wyoming in June |
| July | 22° / 7° | 6 | 25 | 1 | 56 mm | Good | Wyoming in July |
| August | 21° / 6° | 7 | 23 | 1 | 67 mm | Ok | Wyoming in August |
| September | 16° / 3° | 6 | 19 | 5 | 76 mm | Ok | Wyoming in September |
| October | 6° / -4° | 7 | 7 | 17 | 94 mm | Awful | Wyoming in October |
| November | -2° / -10° | 4 | 6 | 21 | 100 mm | Awful | Wyoming in November |
| December | -7° / -16° | 3 | 3 | 25 | 111 mm | Awful | Wyoming in December |