May weather forecastMcArthur, CA
May
Weather in May
The last month of the spring, May, is a comfortable month in McArthur, California, with an average temperature fluctuating between 66.9°F (19.4°C) and 40.6°F (4.8°C).Temperature
As McArthur transitions into May, the average high-temperature shows a change, moving from a moderate 57.7°F (14.3°C) in April to a still refreshing 66.9°F (19.4°C). McArthur reports a marked divergence from daytime peaks throughout May, with lows averaging at a wintry 40.6°F (4.8°C).Humidity
The average relative humidity in May is 60%.Rainfall
In McArthur, during May, the rain falls for 11.5 days and regularly aggregates up to 2.2" (56mm) of precipitation. In McArthur, California, during the entire year, the rain falls for 105 days and collects up to 24.69" (627mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.4 snowfall days, in May, McArthur aggregates 0.2" (5mm) of snow. In McArthur, during the entire year, snow falls for 36.7 days and aggregates up to 43.62" (1108mm) of snow.Daylight
The average length of the day in May is 14h and 30min.On the first day of the month, sunrise is at 6:02 am and sunset at 8:02 pm. On the last day of May, sunrise is at 5:35 am and sunset at 8:31 pm PDT.
Sunshine
In McArthur, the average sunshine in May is 11.1h.UV index
The average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: A maximum high daily UV index of 4 during May translates into the following directions:
Put precautions into practice - Protective measures against sun-induced damage are advised. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
McArthur, CA
- Average high temperature in May: 66.9°F
The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is December (43.3°F).
- Average low temperature in May: 40.6°F
The month with the highest average low temperature is July (53.1°F).
The coldest month (with the lowest average low temperature) is December (27.9°F).
Average pressure in May
McArthur, CA
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).
Average wind speed in May
McArthur, CA
- Average wind speed in May: 5.4mph
The windiest month (with the highest average wind speed) is March (5.8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in May
McArthur, CA
- Average humidity in May: 60%
The months with the highest relative humidity are January and March (79%).
The months with the lowest relative humidity are July and August (40%).
Average rainfall in May
McArthur, CA
- Average rainfall in May: 2.2"
The wettest month (with the highest rainfall) is March (4.45").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in May
McArthur, CA
- Average rainfall days in May: 11.5 days
The month with the highest number of rainy days is April (14.5 days).
The month with the least rainy days is August (2.3 days).
Average snowfall in May
McArthur, CA
- Average snowfall in May: 0.2"
The month with the highest snowfall is March (10.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
McArthur, CA
- Average snowfall days in May: 0.4 days
The month with the highest number of snowfall days is March (8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
McArthur, CA
- Average daylight in May: 14h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in May: 11h and 6min
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 42min).
Average sunshine days in May
McArthur, CA
- Average sunshine days in May: 16.8 days
The month with the most sunshine days is August (26 days).
The month with the least sunshine days is March (11.3 days).
Average UV index in May
McArthur, CA
- Average UV index in May: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
McArthur, CA
- Average cloud cover in May: 24
The month with the most cloud cover is March (Cloud cover 42).
The months with the least cloud cover are July and August (Cloud cover 6).
Average visibility in May
McArthur, CA
- Average visibility in May: 6mi
The months with the highest visibility are February, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, March and December (5mi).
