Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
Forestville experiences a subtle adjustment in high-temperatures to an agreeable 71.6°F (22°C) with the onset of May, maintaining near parity with April's 66.6°F (19.2°C). A sharp reduction from the daytime highs is witnessed during May, with nighttime temperatures averaging a low of 47.7°F (8.7°C).Humidity
In May, the average relative humidity is 67%.Rainfall
In Forestville, during May, the rain falls for 5.8 days and regularly aggregates up to 0.91" (23mm) of precipitation. Throughout the year, there are 80.5 rainfall days, and 17.6" (447mm) of precipitation is accumulated.Daylight
The average length of the day in May is 14h and 17min.On the first day of May, sunrise is at 6:13 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 8:29 pm PDT.
Sunshine
In May, the average sunshine is 10.5h.UV index
The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: An average maximum UV index of 5 in May leads to these recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature?
What is the average humidity in May?
How many days does it rain in May?
How many hours of daylight does Forestville have in May?
When is the sunrise / sunset in May?
How many hours of sunshine does Forestville have in May?
What is the UV index intensity in May?
Average temperature in May
Forestville, CA
- Average high temperature in May: 71.6°F
The warmest month (with the highest average high temperature) is August (83.5°F).
The month with the lowest average high temperature is December (55.8°F).
- Average low temperature in May: 47.7°F
The month with the highest average low temperature is August (54.3°F).
The coldest month (with the lowest average low temperature) is December (40.5°F).
Average pressure in May
Forestville, CA
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed in May
Forestville, CA
- Average wind speed in May: 6.4mph
The windiest month (with the highest average wind speed) is May (6.4mph).
The calmest month (with the lowest average wind speed) is November (4.5mph).
Average humidity in May
Forestville, CA
- Average humidity in May: 67%
The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is September (58%).
Average rainfall in May
Forestville, CA
- Average rainfall in May: 0.91"
The wettest month (with the highest rainfall) is February (3.78").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in May
Forestville, CA
- Average rainfall days in May: 5.8 days
The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is July (1 days).
Average daylight in May /
Average sunshine in May
Forestville, CA
- Average daylight in May: 14h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in May: 10h and 3min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in May
Forestville, CA
- Average sunshine days in May: 23.3 days
The month with the most sunshine days is July (29.1 days).
The month with the least sunshine days is March (15.3 days).
Average UV index in May
Forestville, CA
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in May
Forestville, CA
- Average cloud cover in May: 27
The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 8).
Average visibility in May
Forestville, CA
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Forestville, California, USA
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