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
California experiences a temperature shift with the start of May, with average high-temperatures moving from a moderate 60.6°F (15.9°C) in April to a pleasant 72.1°F (22.3°C). Throughout May, an average low-temperature of 51.6°F (10.9°C) is experienced.Humidity
In California, the average relative humidity in May is 78%.Rainfall
May is the month with the most rainfall in California. Rain falls for 21.8 days and accumulates 3.78" (96mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in California. May is the last month it regularly snows. During 0.1 snowfall days, in May, California aggregates 0.12" (3mm) of snow. Throughout the year, in California, Pennsylvania, there are 60.2 snowfall days, and 25.08" (637mm) of snow is accumulated.Daylight
In California, Pennsylvania, the average length of the day in May is 14h and 25min.On the first day of May, sunrise is at 6:18 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 8:42 pm EDT.
Sunshine
In California, the average sunshine in May is 8.9h.UV index
May through July, with an average maximum UV index of 6, are months with the highest UV index in California. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The daily high UV index of 6 during May translates into the following recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Frequently asked questions
What are the temperatures in California in May?
What is the average humidity in May in California?
What is the rainiest month in California?
How many days does it rain in May in California?
What is the last month it snows in California?
What is the average length of the day in May in California?
When are sunrise and sunset in May in California?
How many hours of sunshine does California have in May?
When is the highest UV index in California?
What is the UV index reading in May in California?
Average temperature in May
California, PA
- Average high temperature in May: 72.1°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in May: 51.6°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in May
California, PA
- Average pressure in May: 30"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in May
California, PA
- Average wind speed in May: 6mph
The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in May
California, PA
- Average humidity in May: 78%
The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (76%).
Average rainfall in May
California, PA
- Average rainfall in May: 3.78"
The wettest month (with the highest rainfall) is May (3.78").
The driest month (with the least rainfall) is November (2.13").
Average rainfall days in May
California, PA
- Average rainfall days in May: 21.8 days
The month with the highest number of rainy days is May (21.8 days).
The months with the least rainy days are January and February (11.7 days).
Average snowfall in May
California, PA
- Average snowfall in May: 0.12"
The month with the highest snowfall is January (6.26").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
California, PA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
California, PA
- Average daylight in May: 14h and 2min
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: 8h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in May
California, PA
- Average sunshine days in May: 8.2 days
The month with the most sunshine days is November (14.3 days).
The month with the least sunshine days is January (6.8 days).
Average UV index in May
California, PA
- Average UV index in May: 6
The months with the highest UV index are May, June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
California, PA
- Average cloud cover in May: 44
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in May
California, PA
- Average visibility in May: 5mi
The months with the highest visibility are April, August and November (6mi).
The months with the lowest visibility are January and February (4mi).
California, Pennsylvania, USA
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