May weather forecastWest Covina, CA
May
Weather in May
The temperatures begin a climb towards the peak summer levels in May. Showcasing one of the lowest rainfall days and rainfall amount, May stands out as a comparatively dry month in West Covina. Along with this, an uptick in daylight hours showcases a clear transition towards West Covina's summer months. The summer sun begins to assert its presence as May advances, transforming the landscape into a tableau of sun-bathed hues. As May ends, one can anticipate warmer nights, more sunshine, and an expanding summer season.Temperature
The arrival of May in West Covina brings an average high-temperature of a moderately hot 75.7°F (24.3°C), subtly diverging from April's 73°F (22.8°C). West Covina in May observes a sharp transition from the daytime heat, falling to an average low of 54.1°F (12.3°C).Humidity
May and June, with an average relative humidity of 57%, are the most humid months in West Covina.Rainfall
In May, in West Covina, the rain falls for 3.7 days. Throughout May, 0.2" (5mm) of precipitation is accumulated. Throughout the year, there are 49.8 rainfall days, and 7.76" (197mm) of precipitation is accumulated.Snowfall
In West Covina, snow does not fall in January through November.Daylight
In West Covina, the average length of the day in May is 13h and 57min.On the first day of the month, sunrise is at 6:01 am and sunset at 7:36 pm. On the last day of May, in West Covina, sunrise is at 5:41 am and sunset at 7:57 pm PDT.
Sunshine
In West Covina, the average sunshine in May is 11.6h.UV index
In West Covina, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 5 during May morphs into the following directions:
Exercise prevention - Protecting skin and eyes from harm is required. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
West Covina, CA
- Average high temperature in May: 75.7°F
The warmest month (with the highest average high temperature) is August (88.9°F).
The month with the lowest average high temperature is December (63.5°F).
- Average low temperature in May: 54.1°F
The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is December (47.3°F).
Average pressure in May
West Covina, CA
- Average pressure in May: 29.92"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in May
West Covina, CA
- Average wind speed in May: 5.7mph
The windiest months (with the highest average wind speed) are April and May (5.7mph).
The calmest months (with the lowest average wind speed) are September and October (4.5mph).
Average humidity in May
West Covina, CA
- Average humidity in May: 57%
The months with the highest relative humidity are May and June (57%).
The month with the lowest relative humidity is November (46%).
Average rainfall in May
West Covina, CA
- Average rainfall in May: 0.2"
The wettest month (with the highest rainfall) is December (1.73").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in May
West Covina, CA
- Average rainfall days in May: 3.7 days
The month with the highest number of rainy days is March (6.8 days).
The month with the least rainy days is June (1.3 days).
Average snowfall days in May
West Covina, CA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in May /
Average sunshine in May
West Covina, 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 36min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are February and December (Average sunshine: 6h and 54min).
Average sunshine days in May
West Covina, CA
- Average sunshine days in May: 26 days
The month with the most sunshine days is June (28 days).
The month with the least sunshine days is February (21.6 days).
Average UV index in May
West Covina, CA
- Average UV index in May: 5
The month with the highest UV index is August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 4).
Average cloud cover in May
West Covina, CA
- Average cloud cover in May: 14
The month with the most cloud cover is December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in May
West Covina, 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).
