Mount Shasta Weather in May
What's the weather like in Mount Shasta (California) in May 2025?
The climate in Mount Shasta during May can be summarized as mild and reasonably dry.
May is in the spring in Mount Shasta and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a cool 19°C (67°F), whilst at night 3°C (37°F) is normal.
| Daytime temperature | 19.4°C 66.9°F |
|---|---|
| Nightly temperature | 3°C 37.4°F |
| Average temperature | 11.2°C 52.2°F |
| Daily sunshine | 11.8 hrs |
| Avg rainfall | 38 mm 1.5 ins |
| Rainy days | 7 days |
| Sea temperature | 11.2°C 52.1°F |
| Humidity | 58% |
| Windspeed | 13.3kph 8 mph |
On average May is the 5th driest month of the year in Mount Shasta with around 38mm 1.5 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.
On the flip side this corresponds to an average of 11.8 hours of sunshine per day.
May temperatures in Mount Shasta
May rainfall
May hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Mount Shasta in May 2025.
Other monthly averages
Mount Shasta weather stats
| Hottest month: | July | 28.5°C 83.3°F |
|---|---|---|
| Driest month: | July | 7mm 0.3ins |
| Sunniest month: | July | 13.9hrs |
| Coldest month: | January | 5.8°C 42.4°F |
| Wettest month: | January | 184mm 7.2ins |
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