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
May's onset witnesses a minor shift in the average high-temperature, moving from a pleasant 71.2°F (21.8°C) in April to a moderately hot 79°F (26.1°C). A steady average of 51.8°F (11°C) throughout May underscores a considerable divergence from the daytime high.Humidity
In Westley, California, the average relative humidity in May is 52%.Rainfall
In Westley, in May, it is raining for 3.5 days, with typically 0.16" (4mm) of accumulated precipitation. Throughout the year, there are 49.1 rainfall days, and 2.8" (71mm) of precipitation is accumulated.Daylight
In Westley, the average length of the day in May is 14h and 13min.On the first day of the month, sunrise is at 6:08 am and sunset at 7:55 pm. On the last day of May, in Westley, sunrise is at 5:45 am and sunset at 8:20 pm PDT.
Sunshine
In Westley, the average sunshine in May is 11.2h.UV index
The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: The UV index of 5 during May translates into the following guidance:
Exercise prevention - Warding off sunburn is urged. Minimize direct exposure to the Sun during midday when its radiation is at its peak. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What is the average humidity in May?
How many days does it rain in May?
How many hours of daylight does Westley have in May?
When are sunrise and sunset in May?
How long on average sun shines in May?
How high is the UV index in May in Westley?
Average temperature in May
Westley, CA
- Average high temperature in May: 79°F
The warmest month (with the highest average high temperature) is July (96.4°F).
The month with the lowest average high temperature is December (55.4°F).
- Average low temperature in May: 51.8°F
The months with the highest average low temperature are July and August (60.8°F).
The coldest months (with the lowest average low temperature) are January and December (41°F).
Average pressure in May
Westley, CA
- Average pressure in May: 29.97"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Westley, CA
- Average wind speed in May: 6.5mph
The windiest month (with the highest average wind speed) is June (6.7mph).
The calmest months (with the lowest average wind speed) are January and November (5.1mph).
Average humidity in May
Westley, CA
- Average humidity in May: 52%
The month with the highest relative humidity is January (72%).
The month with the lowest relative humidity is July (39%).
Average rainfall in May
Westley, CA
- Average rainfall in May: 0.16"
The wettest months (with the highest rainfall) are March and December (0.47").
The driest months (with the least rainfall) are June and August (0.04").
Average rainfall days in May
Westley, CA
- Average rainfall days in May: 3.5 days
The month with the highest number of rainy days is March (8.5 days).
The month with the least rainy days is June (1 days).
Average daylight in May /
Average sunshine in May
Westley, CA
- Average daylight in May: 14h and 1min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in May: 11h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in May
Westley, CA
- Average sunshine days in May: 26.8 days
The month with the most sunshine days is August (28.9 days).
The month with the least sunshine days is March (20.9 days).
Average UV index in May
Westley, 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
Westley, CA
- Average cloud cover in May: 18
The month with the most cloud cover is March (Cloud cover 34).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in May
Westley, 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).
Westley, California, USA
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