Grass Valley (CA)
May
Weather in Grass Valley, California for May 2026
Your guide to Grass Valley weather in May - trends and predictions
In general, the average temperature in Grass Valley at the beginning of May is 22.4 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 27.6 °F by the end of May.
With an average of 4 rainy days, Grass Valley experiences minimal rainfall in May.
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Temperatures
Rain 🌧️
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27
Dry days
4
Rainy days
0
Snow days
24°/12°
Temperatures
14 km/h
Avg max wind
55 %
Avg humidity
Grass Valley Weather May
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Temperatures trend during May in Grass Valley
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May weather in Grass Valley day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Sunny | 24° /12° | 0 mm | 6 | |
| May 2 | Sunny | 23° /14° | 0 mm | 6 | |
| May 3 |  Patchy rain possible | 16° /11° | 0.9 mm | 4 | |
| May 4 | Patchy rain possible | 23° /10° | 0.1 mm | 5 | |
| May 5 | Sunny | 25° /12° | 0 mm | 7 | |
| May 6 | Sunny | 23° /13° | 0 mm | 6 | |
| May 7 | Sunny | 23° /13° | 0 mm | 6 | |
| May 8 | Sunny | 26° /9° | 0 mm | 7 | |
| May 9 | Sunny | 28° /11° | 0 mm | 7 | |
| May 10 |  Partly cloudy | 29° /14° | 0 mm | 7 | |
| May 11 | Sunny | 22° /11° | 0 mm | 6 | |
| May 12 |  Moderate or heavy rain shower | 12° /6° | 9.6 mm | 3 | |
| May 13 | Moderate rain at times | 14° /7° | 5.6 mm | 3 | |
| May 14 | Partly cloudy | 18° /7° | 0 mm | 5 | |
| May 15 | Partly cloudy | 22° /9° | 0 mm | 6 | |
| May 16 | Partly cloudy | 24° /11° | 0 mm | 6 | |
| May 17 | Patchy rain possible | 18° /11° | 0.4 mm | 4 | |
| May 18 | Sunny | 21° /8° | 0 mm | 6 | |
| May 19 | Sunny | 25° /12° | 0 mm | 7 | |
| May 20 | Sunny | 25° /10° | 0 mm | 7 | |
| May 21 | Sunny | 27° /11° | 0 mm | 7 | |
| May 22 | Sunny | 25° /14° | 0 mm | 7 | |
| May 23 | Sunny | 22° /11° | 0 mm | 6 | |
| May 24 | Sunny | 25° /11° | 0 mm | 7 | |
| May 25 | Partly cloudy | 23° /14° | 0 mm | 6 | |
| May 26 |  Overcast | 22° /11° | 0 mm | 5 | |
| May 27 | Sunny | 26° /14° | 0 mm | 7 | |
| May 28 | Sunny | 27° /17° | 0 mm | 7 | |
| May 29 |  Cloudy | 27° /15° | 0 mm | 6 | |
| May 30 | Sunny | 33° /20° | 0 mm | 8 | |
| May 31 | Sunny | 35° /24° | 0 mm | 9 | |
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Important Notice
Our weather forecast for Grass Valley 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 Grass Valley forecast closer to your planned date for the most up-to-date weather information.
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Grass Valley in May - FAQ
What are the expected maximum and minimum temperatures in Grass Valley during May?
Enjoy moderate daytime temperatures of up to 24° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Grass Valley during May?
Expect minimal rainfall in Grass Valley during May, with a total of 16.6 mm over approximately 4 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Grass Valley during May?
The average wind speed in Grass Valley during May is 14 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Grass Valley
Explore the daily rainfall trends and prepare for Grass Valleys May weather 💧
UV exposure in Grass Valley during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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Where is Grass Valley?Get accurate weather forecasts for Grass Valley, located at latitude 39.219 and longitude -121.061. Stay updated with localized weather information tailored for Grass Valley.
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