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 snowfall in May
- Average snowfall 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
Folsom perceives a slight temperature ascent during May, with average high-temperatures adjusting from an agreeable 68.5°F (20.3°C) in April to a warm 76.3°F (24.6°C). May nights are characterized by a significant departure from the daytime highs, dropping to an average temperature of 50.5°F (10.3°C).Humidity
In May, the average relative humidity is 59%.Rainfall
In May, the rain falls for 5.3 days. Throughout May, 0.79" (20mm) of precipitation is accumulated. Throughout the year, in Folsom, there are 70.2 rainfall days, and 13.43" (341mm) of precipitation is accumulated.Snowfall
January through November are months without snowfall.Daylight
The average length of the day in May is 14h and 18min.On the first day of May, sunrise is at 6:06 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 8:23 pm PDT.
Sunshine
In Folsom, the average sunshine in May is 11h.UV index
The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: A maximum high UV index of 5 in May translates into the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures in Folsom?
What is the average humidity in May?
How many days does it rain in May?
When it does not snow?
How many hours of daylight does Folsom have in May?
When is the sunrise / sunset in May?
How long on average sun shines in May?
What is the UV index intensity in May?
Average temperature in May
Folsom, CA
- Average high temperature in May: 76.3°F
The warmest month (with the highest average high temperature) is July (93.7°F).
The month with the lowest average high temperature is December (54°F).
- Average low temperature in May: 50.5°F
The month with the highest average low temperature is August (59.9°F).
The coldest month (with the lowest average low temperature) is December (40.1°F).
Average pressure in May
Folsom, CA
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
Folsom, CA
- Average wind speed in May: 4.8mph
The windiest month (with the highest average wind speed) is February (5.5mph).
The calmest month (with the lowest average wind speed) is September (3.9mph).
Average humidity in May
Folsom, CA
- Average humidity in May: 59%
The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is July (41%).
Average rainfall in May
Folsom, CA
- Average rainfall in May: 0.79"
The wettest month (with the highest rainfall) is March (2.48").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in May
Folsom, CA
- Average rainfall days in May: 5.3 days
The month with the highest number of rainy days is March (12.9 days).
The month with the least rainy days is July (1.2 days).
Average snowfall in May
Folsom, CA
- Average snowfall in May: 0"
The month with the highest snowfall is December (0.04").
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Folsom, CA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is December (0.2 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in May /
Average sunshine in May
Folsom, 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: 11h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in May
Folsom, CA
- Average sunshine days in May: 24.6 days
The month with the most sunshine days is July (29.1 days).
The month with the least sunshine days is March (17.3 days).
Average UV index in May
Folsom, CA
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in May
Folsom, CA
- Average cloud cover in May: 20
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in May
Folsom, 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).
Folsom, California, USA
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