Weather in Boulder County for May 2025
Snowfall in Boulder County during May is quite rare, with fewer than 2 snowy days on average.
According to Boulder County snow forecast for May 2025, 1 snowy day is expected at the beginning of May at Thursday, May 1.Expect cooler weather in first days of May 2025 in Boulder County with the forecast suggesting a temperature of 13.1 °F, lower than the historical average.
In general, the average temperature in Boulder County at the beginning of May is 15 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 22.1 °F by the end of May.
The climate of Boulder County in May is notably wet, with an average of 15 rainy days, and a total of 41.9 mm of precipitation.
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Boulder County Weather May
Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
---|---|---|---|---|---|---|
1 9° | 2 12° | 3 15° | ||||
4 14° | 5 20° | 6 19° | 7 16° | 8 11° | 9 8° | 10 11° |
11 16° | 12 16° | 13 19° | 14 22° | 15 14° | 16 19° | 17 24° |
18 21° | 19 24° | 20 18° | 21 12° | 22 18° | 23 22° | 24 17° |
25 21° | 26 20° | 27 22° | 28 22° | 29 25° | 30 23° | 31 22° |
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Temperatures trend during May in Boulder County
May weather day by day
Date | Weather | Temperatures | Rain | Snow | More |
---|---|---|---|---|---|
May 1 | Moderate rain | 9° /-1° | 6.2 mm | 4 cm | |
May 2 | Patchy rain possible | 12° /1° | 0.4 mm | 0 cm | |
May 3 | Sunny | 15° /3° | 0 mm | 0 cm | |
May 4 | Partly cloudy | 14° /3° | 0 mm | 0 cm | |
May 5 | Sunny | 20° /6° | 0.1 mm | 0 cm | |
May 6 | Patchy rain possible | 19° /6° | 0.3 mm | 0 cm | |
May 7 | Patchy rain possible | 16° /6° | 2.5 mm | 0 cm | |
May 8 | Cloudy | 11° /0° | 0 mm | 0 cm | |
May 9 | Overcast | 8° /2° | 2.4 mm | 0 cm | |
May 10 | Moderate rain at times | 11° /3° | 1.9 mm | 0 cm | |
May 11 | Patchy rain possible | 16° /3° | 0.7 mm | 0 cm | |
May 12 | Moderate or heavy rain shower | 16° /7° | 7.9 mm | 0 cm | |
May 13 | Patchy rain possible | 19° /6° | 0.2 mm | 0 cm | |
May 14 | Overcast | 22° /8° | 0 mm | 0 cm | |
May 15 | Moderate or heavy rain shower | 14° /8° | 3.3 mm | 0 cm | |
May 16 | Cloudy | 19° /6° | 0 mm | 0 cm | |
May 17 | Cloudy | 24° /10° | 0 mm | 0 cm | |
May 18 | Overcast | 21° /11° | 0 mm | 0 cm | |
May 19 | Cloudy | 24° /9° | 0 mm | 0 cm | |
May 20 | Patchy rain possible | 18° /7° | 8.1 mm | 0 cm | |
May 21 | Moderate or heavy rain shower | 12° /5° | 8.1 mm | 0 cm | |
May 22 | Partly cloudy | 18° /3° | 0 mm | 0 cm | |
May 23 | Cloudy | 22° /8° | 0.1 mm | 0 cm | |
May 24 | Overcast | 17° /3° | 0 mm | 0 cm | |
May 25 | Heavy rain at times | 21° /8° | 2.3 mm | 0 cm | |
May 26 | Sunny | 20° /8° | 0 mm | 0 cm | |
May 27 | Sunny | 22° /9° | 0 mm | 0 cm | |
May 28 | Cloudy | 22° /9° | 0 mm | 0 cm | |
May 29 | Cloudy | 25° /11° | 0 mm | 0 cm | |
May 30 | Overcast | 23° /9° | 2.5 mm | 0 cm | |
May 31 | Patchy light drizzle | 22° /8° | 1.1 mm | 0 cm | |
Next |
Boulder County in May - FAQ
Boulder County snow forecast May 2025
May rainfall patterns in Boulder County
UV exposure in Boulder County during May
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Get accurate weather forecasts for Boulder County, located at latitude 40.015 and longitude -105.271. Stay updated with localized weather information tailored for Boulder County.