May weather forecastGreenville, CA
May
Weather in May
The last month of the spring, May, is a refreshing month in Greenville, California, with an average temperature varying between 37.9°F (3.3°C) and 62.2°F (16.8°C).Temperature
As Greenville, California, transitions into May, a rise in the average high-temperature is observed, moving from a fresh 53.2°F (11.8°C) in April to a refreshing 62.2°F (16.8°C). Despite the significant gap from daytime peaks, Greenville experiences an average low-temperature of 37.9°F (3.3°C) in May.Humidity
In Greenville, California, the average relative humidity in May is 61%.Rainfall
In May, in Greenville, the rain falls for 10.7 days. Throughout May, 1.46" (37mm) of precipitation is accumulated. Throughout the year, there are 91.7 rainfall days, and 23.19" (589mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows in Greenville, California. During 0.5 snowfall days, in May, Greenville aggregates 0.47" (12mm) of snow. Throughout the year, there are 37.7 snowfall days, and 56.02" (1423mm) of snow is accumulated.Daylight
In Greenville, the average length of the day in May is 14h and 25min.On the first day of May in Greenville, California, sunrise is at 6:02 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 5:36 am and sunset at 8:26 pm PDT.
Sunshine
In May, the average sunshine is 10.9h.UV index
In Greenville, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The average daily UV index of 4 in May transforms into the following instructions:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Greenville, CA
- Average high temperature in May: 62.2°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is December (39.2°F).
- Average low temperature in May: 37.9°F
The month with the highest average low temperature is July (49.1°F).
The coldest month (with the lowest average low temperature) is December (23.4°F).
Average pressure in May
Greenville, CA
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
Greenville, CA
- Average wind speed in May: 5.8mph
The windiest month (with the highest average wind speed) is March (6.4mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in May
Greenville, CA
- Average humidity in May: 61%
The months with the highest relative humidity are January and March (81%).
The month with the lowest relative humidity is July (41%).
Average rainfall in May
Greenville, CA
- Average rainfall in May: 1.46"
The wettest months (with the highest rainfall) are February and December (4.06").
The driest month (with the least rainfall) is July (0.12").
Average rainfall days in May
Greenville, CA
- Average rainfall days in May: 10.7 days
The month with the highest number of rainy days is March (13.3 days).
The month with the least rainy days is August (1.8 days).
Average snowfall in May
Greenville, CA
- Average snowfall in May: 0.47"
The month with the highest snowfall is February (13.07").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Greenville, CA
- Average snowfall days in May: 0.5 days
The month with the highest number of snowfall days is March (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Greenville, CA
- Average daylight in May: 14h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in May: 10h and 54min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in May
Greenville, CA
- Average sunshine days in May: 18.3 days
The month with the most sunshine days is August (27.8 days).
The month with the least sunshine days is March (12.3 days).
Average UV index in May
Greenville, CA
- Average UV index in May: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in May
Greenville, CA
- Average cloud cover in May: 25
The month with the most cloud cover is March (Cloud cover 45).
The months with the least cloud cover are July and August (Cloud cover 6).
Average visibility in May
Greenville, CA
- Average visibility in May: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
