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
The shift into May is marked by a modest rise in the average high-temperature, moving from April's pleasant 71.1°F (21.7°C) to a moderately hot 79.5°F (26.4°C). Glenn encounters a significant temperature differential, with an average low-temperature of 54.3°F (12.4°C) during May nights.Humidity
The average relative humidity in May is 49%.Rainfall
In Glenn, in May, during 6.3 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. Throughout the year, there are 82.1 rainfall days, and 17.24" (438mm) of precipitation is accumulated.Daylight
The average length of the day in May is 14h and 22min.On the first day of the month, sunrise is at 6:07 am and sunset at 8:02 pm. On the last day of May, sunrise is at 5:42 am and sunset at 8:29 pm PDT.
Sunshine
In May, the average sunshine is 11.2h.UV index
The average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In May, the UV index of 6 transforms into the following advice:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
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 much does it rain in May?
How many hours of daylight does Glenn have in May?
What time are sunrise and sunset in May in Glenn?
How long on average sun shines in May in Glenn?
What is the UV index intensity in May?
Average temperature in May
Glenn, CA
- Average high temperature in May: 79.5°F
The warmest month (with the highest average high temperature) is July (98.4°F).
The month with the lowest average high temperature is December (54.9°F).
- Average low temperature in May: 54.3°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is December (41.9°F).
Average pressure in May
Glenn, 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
Glenn, CA
- Average wind speed in May: 6.7mph
The windiest month (with the highest average wind speed) is March (7.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in May
Glenn, CA
- Average humidity in May: 49%
The month with the highest relative humidity is March (69%).
The months with the lowest relative humidity are July and August (32%).
Average rainfall in May
Glenn, CA
- Average rainfall in May: 1.02"
The wettest month (with the highest rainfall) is February (3.19").
The driest months (with the least rainfall) are July and August (0.08").
Average rainfall days in May
Glenn, CA
- Average rainfall days in May: 6.3 days
The month with the highest number of rainy days is March (14.1 days).
The month with the least rainy days is July (1.6 days).
Average daylight in May /
Average sunshine in May
Glenn, CA
- Average daylight in May: 14h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in May: 11h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in May
Glenn, CA
- Average sunshine days in May: 24.1 days
The month with the most sunshine days is July (29.5 days).
The month with the least sunshine days is March (16.1 days).
Average UV index in May
Glenn, CA
- Average UV index in May: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are February, November and December (UV index 3).
Average cloud cover in May
Glenn, CA
- Average cloud cover in May: 20
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in May
Glenn, 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).
Glenn, California, USA
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