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 snowfall in May
- Average snowfall 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
West Richland's May weather shows an increase in high-temperatures, moving from April's refreshing 63.3°F (17.4°C) to an agreeable 73°F (22.8°C). West Richland registers a substantial downturn from daytime peaks throughout May nights, with an average low-temperature of 50.7°F (10.4°C).Humidity
The average relative humidity in May is 48%.Rainfall
In West Richland, in May, it is raining for 8.8 days, with typically 0.67" (17mm) of accumulated precipitation. In West Richland, during the entire year, the rain falls for 100.2 days and collects up to 7.05" (179mm) of precipitation.Snowfall
In West Richland, snow does not fall in April through October.Daylight
In West Richland, Washington, the average length of the day in May is 15h and 1min.On the first day of May, sunrise is at 5:42 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 5:08 am and sunset at 8:41 pm PDT.
Sunshine
In West Richland, the average sunshine in May is 11.1h.UV index
The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: During May, 5 as the daily maximum UV index converts into the following advice:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May?
What is the average humidity in May?
How many days does it rain in May?
When it does not snow in West Richland?
How many hours of daylight does West Richland have in May?
When is the sunrise / sunset in May?
How long on average sun shines in May?
What is the UV index reading in May?
Average temperature in May
West Richland, WA
- Average high temperature in May: 73°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is December (38.1°F).
- Average low temperature in May: 50.7°F
The month with the highest average low temperature is August (64.2°F).
The coldest month (with the lowest average low temperature) is December (27.5°F).
Average pressure in May
West Richland, WA
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in May
West Richland, WA
- Average wind speed in May: 7.3mph
The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is December (5.6mph).
Average humidity in May
West Richland, WA
- Average humidity in May: 48%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is July (35%).
Average rainfall in May
West Richland, WA
- Average rainfall in May: 0.67"
The wettest month (with the highest rainfall) is December (0.94").
The driest months (with the least rainfall) are July and September (0.2").
Average rainfall days in May
West Richland, WA
- Average rainfall days in May: 8.8 days
The month with the highest number of rainy days is March (12.3 days).
The month with the least rainy days is July (3.5 days).
Average snowfall in May
West Richland, WA
- Average snowfall in May: 0"
The month with the highest snowfall is February (2.2").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
West Richland, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is December (3.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
West Richland, WA
- Average daylight in May: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- 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 January (Average sunshine: 5h and 24min).
Average sunshine days in May
West Richland, WA
- Average sunshine days in May: 19.8 days
The month with the most sunshine days is July (25.7 days).
The months with the least sunshine days are February and March (15.3 days).
Average UV index in May
West Richland, WA
- Average UV index in May: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
West Richland, WA
- Average cloud cover in May: 25
The month with the most cloud cover is January (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in May
West Richland, WA
- 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).
West Richland, Washington, USA
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