Wyoming (Yellowstone National Park)
May
Weather in Wyoming for May 2025
Your guide to Wyoming weather in May - trends and predictions
Frost Advisory - See hour by hour.
Expect heavy snowfall in Wyoming during May, with an average of 18 snowy days.
According to Wyoming snow forecast for May 2025, 3 snowy days are expected in the next 2 weeks. The closest date with snow is Sunday, May 4.The forecast for the next days in Wyoming predicts temperatures to be around 13 °F, close to the historical average.
In general, the average temperature in Wyoming at the beginning of May is 11.9 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 8.9 °F by the end of May.
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Temperatures
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10
Dry days
3
Rainy days
18
Snow days
7°/-3°
Temperatures
23 km/h
Avg max wind
74 %
Avg humidity
Wyoming Weather May
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1   8° | 2  12° | 3 16° | ||||
| 4  15° | 5  8° | 6 10° | 7 14° | 8 17° | 9 18° | 10 14° |
| 11 11° | 12 12° | 13 15° | 14  7° | 15  9° | 16 12° | 17 10° |
| 18 8° | 19  6° | 20  7° | 21 4° | 22 3° | 23 1° | 24  6° |
| 25 4° | 26 5° | 27  11° | 28 15° | 29 10° | 30  6° | 31 11° |
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Temperatures trend during May in Wyoming
See the weather trend as well as the moving average line
May weather day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| May 1 | Sunny | 8° /-3° | 0 mm | 0 cm | |
| May 2 | Partly cloudy | 12° /-12° | 0 mm | 0 cm | |
| May 3 | Sunny | 16° /-3° | 0 mm | 0 cm | |
| May 4 | Moderate rain | 15° /1° | 7.7 mm | 0 cm | |
| May 5 | Patchy rain possible | 8° /2° | 0.1 mm | 0.1 cm | |
| May 6 | Patchy rain possible | 10° /-1° | 0 mm | 0 cm | |
| May 7 | Patchy rain possible | 14° /0° | 0.3 mm | 0 cm | |
| May 8 | Sunny | 17° /3° | 0 mm | 0 cm | |
| May 9 | Sunny | 18° /4° | 0 mm | 0 cm | |
| May 10 | Patchy rain possible | 14° /4° | 1.7 mm | 0 cm | |
| May 11 | Patchy rain possible | 11° /4° | 4 mm | 0.1 cm | |
| May 12 | Patchy rain possible | 12° /2° | 1.3 mm | 0 cm | |
| May 13 | Sunny | 15° /1° | 0 mm | 0 cm | |
| May 14 | Moderate or heavy snow with thunder | 7° /1° | 14.6 mm | 6.7 cm | |
| May 15 | Patchy light rain with thunder | 9° /-1° | 2.3 mm | 0 cm | |
| May 16 | Partly cloudy | 12° /-1° | 0 mm | 0 cm | |
| May 17 | Patchy rain possible | 10° /-1° | 0.9 mm | 0 cm | |
| May 18 | Sunny | 8° /-4° | 0 mm | 0 cm | |
| May 19 | Light freezing rain | 6° /-1° | 0.8 mm | 0.5 cm | |
| May 20 | Overcast | 7° /-2° | 0 mm | 0 cm | |
| May 21 | Moderate or heavy snow with thunder | 4° /-4° | 18.3 mm | 12.5 cm | |
| May 22 | Moderate or heavy snow with thunder | 3° /-5° | 5.8 mm | 3.5 cm | |
| May 23 | Moderate or heavy snow with thunder | 1° /-4° | 5.9 mm | 4.3 cm | |
| May 24 | Patchy light snow with thunder | 6° /-5° | 0.7 mm | 0 cm | |
| May 25 | Moderate or heavy snow with thunder | 4° /-3° | 5.5 mm | 1.8 cm | |
| May 26 | Patchy light snow with thunder | 5° /-2° | 4 mm | 1.8 cm | |
| May 27 | Mist | 11° /-4° | 0 mm | 0 cm | |
| May 28 | Partly cloudy | 15° /0° | 0.8 mm | 0 cm | |
| May 29 | Patchy light rain with thunder | 10° /2° | 4.4 mm | 0 cm | |
| May 30 | Patchy moderate snow | 6° /-1° | 1.2 mm | 0.4 cm | |
| May 31 | Sunny | 11° /-3° | 0 mm | 0 cm | |
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Important Notice
Our weather forecast for Wyoming in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Wyoming forecast closer to your planned date for the most up-to-date weather information.
Wyoming in May - FAQ
What are the expected maximum and minimum temperatures in Wyoming during May?
Prepare for cooler days with highs just around 7° and colder nights, dipping below -3°.
How much rainfall should be expected in Wyoming during May?
Significant rainfall exceeding 113.9 mm is expected in Wyoming during May, occurring over more than 3 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Wyoming in May 2025?
Wyoming experiences an average snowfall of 50.8 cm during May, occurring over 18 days.
What are the typical wind conditions in Wyoming during May?
The average wind speed in Wyoming during May is 23 km/h, suggesting breezy to windy conditions, depending on your activities.
Wyoming snow forecast May 2025
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May rainfall patterns in Wyoming
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