May weather forecastWillowbrook, CA
May
Weather in May
The last month of the spring, May, is another pleasant month in Willowbrook, California, with temperature in the range of an average high of 71.4°F (21.9°C) and an average low of 56.7°F (13.7°C).Temperature
The advent of May observes an average high-temperature of a still agreeable 71.4°F (21.9°C), nearly identical to April's 69.4°F (20.8°C). The low-temperature averages to a mild 56.7°F (13.7°C) during the nights of May.Humidity
The average relative humidity in May in Willowbrook is 65%.Rainfall
In May, in Willowbrook, the rain falls for 4.1 days. Throughout May, 0.24" (6mm) of precipitation is accumulated. In Willowbrook, during the entire year, the rain falls for 49.7 days and collects up to 6.77" (172mm) of precipitation.Daylight
In Willowbrook, the average length of the day in May is 13h and 56min.On the first day of May in Willowbrook, sunrise is at 6:02 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 7:58 pm PDT.
Sunshine
In May, the average sunshine is 11.2h.UV index
The average daily maximum UV index in May in Willowbrook is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: In May, the maximum UV index of 5 suggests this advice:
Heed the precautions - It is counselled to guard against solar damage. It's recommended to limit sun exposure when its radiation is at its peak during midday. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Willowbrook, CA
- Average high temperature in May: 71.4°F
The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (64°F).
- Average low temperature in May: 56.7°F
The month with the highest average low temperature is August (65.1°F).
The coldest month (with the lowest average low temperature) is February (51.4°F).
Average pressure in May
Willowbrook, CA
- Average pressure in May: 29.93"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.89"Hg).
Average wind speed in May
Willowbrook, CA
- Average wind speed in May: 6mph
The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest months (with the lowest average wind speed) are September and October (4.8mph).
Average humidity in May
Willowbrook, CA
- Average humidity in May: 65%
The month with the highest relative humidity is June (69%).
The month with the lowest relative humidity is November (53%).
Average rainfall in May
Willowbrook, CA
- Average rainfall in May: 0.24"
The wettest months (with the highest rainfall) are January and February (1.26").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in May
Willowbrook, CA
- Average rainfall days in May: 4.1 days
The month with the highest number of rainy days is March (7 days).
The month with the least rainy days is June (1.3 days).
Average daylight in May /
Average sunshine in May
Willowbrook, CA
- Average daylight in May: 13h and 54min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in May: 11h and 12min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in May
Willowbrook, CA
- Average sunshine days in May: 23.4 days
The month with the most sunshine days is August (25.3 days).
The month with the least sunshine days is February (21.1 days).
Average UV index in May
Willowbrook, CA
- Average UV index in May: 5
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 4).
Average cloud cover in May
Willowbrook, CA
- Average cloud cover in May: 18
The months with the most cloud cover are March and December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in May
Willowbrook, 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).
