May weather forecastNorth Bonneville, WA
May
Weather in May
The last month of the spring, May, is a comfortable month in North Bonneville, Washington, with temperature in the range of an average high of 61.3°F (16.3°C) and an average low of 39°F (3.9°C).Temperature
In North Bonneville, the onset of May comes with an increased average high-temperature, moving from April's fresh 51.8°F (11°C) to a refreshing 61.3°F (16.3°C). North Bonneville logs a notable disparity from the daily highs during May, as the nighttime temperature lowers to an average of 39°F (3.9°C).Humidity
In North Bonneville, the average relative humidity in May is 76%.Rainfall
In North Bonneville, in May, during 13.3 rainfall days, 1.85" (47mm) of precipitation is typically accumulated. Throughout the year, there are 158.4 rainfall days, and 30.31" (770mm) of precipitation is accumulated.Snowfall
In North Bonneville, snow does not fall in April through October.Daylight
The average length of the day in May in North Bonneville is 14h and 56min.On the first day of the month, sunrise is at 5:54 am and sunset at 8:15 pm. On the last day of May, in North Bonneville, sunrise is at 5:21 am and sunset at 8:49 pm PDT.
Sunshine
In North Bonneville, the average sunshine in May is 7.9h.UV index
In May, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In May, the maximum UV index of 4 translates into these guidelines:
Take precautions - Protection against sunburn is recommended. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
North Bonneville, WA
- Average high temperature in May: 61.3°F
The warmest month (with the highest average high temperature) is August (76.5°F).
The month with the lowest average high temperature is December (37.9°F).
- Average low temperature in May: 39°F
The month with the highest average low temperature is August (48.7°F).
The coldest month (with the lowest average low temperature) is December (28.2°F).
Average pressure in May
North Bonneville, WA
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is August (29.98"Hg).
Average wind speed in May
North Bonneville, WA
- Average wind speed in May: 4.8mph
The windiest month (with the highest average wind speed) is January (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in May
North Bonneville, WA
- Average humidity in May: 76%
The month with the highest relative humidity is February (89%).
The months with the lowest relative humidity are July and August (67%).
Average rainfall in May
North Bonneville, WA
- Average rainfall in May: 1.85"
The wettest month (with the highest rainfall) is January (5.35").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days in May
North Bonneville, WA
- Average rainfall days in May: 13.3 days
The month with the highest number of rainy days is March (18.9 days).
The month with the least rainy days is July (4.4 days).
Average snowfall in May
North Bonneville, WA
- Average snowfall in May: 0"
The month with the highest snowfall is January (3.62").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
North Bonneville, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
North Bonneville, WA
- Average daylight in May: 14h and 54min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in May: 7h and 54min
The months with the most sunshine are July and August (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 12min).
Average sunshine days in May
North Bonneville, WA
- Average sunshine days in May: 15.4 days
The month with the most sunshine days is July (24.5 days).
The month with the least sunshine days is February (9.4 days).
Average UV index in May
North Bonneville, WA
- Average UV index in May: 4
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in May
North Bonneville, WA
- Average cloud cover in May: 52
The month with the most cloud cover is February (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 26).
Average visibility in May
North Bonneville, WA
- Average visibility in May: 5mi
The months with the highest visibility are May, June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, November and December (4mi).





