May weather forecastTonasket, WA
May
Weather in May
The last month of the spring, May, is a comfortable month in Tonasket, Washington, with an average temperature ranging between max 66°F (18.9°C) and min 42.4°F (5.8°C).Temperature
Tonasket's weather in May shows a rise in the average high-temperature, moving up from April's cool 54.3°F (12.4°C) to a refreshing 66°F (18.9°C). A striking departure from daytime highs to an average low-temperature of 42.4°F (5.8°C) is witnessed during May.Humidity
In Tonasket, the average relative humidity in May is 56%.Rainfall
In Tonasket, Washington, in May, during 8.6 rainfall days, 0.91" (23mm) of precipitation is typically accumulated. Throughout the year, there are 90.2 rainfall days, and 7.56" (192mm) of precipitation is accumulated.Snowfall
In Tonasket, snow does not fall in May through October.Daylight
In Tonasket, the average length of the day in May is 15h and 17min.On the first day of May, sunrise is at 5:35 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 4:59 am and sunset at 8:51 pm PDT.
Sunshine
In May, the average sunshine is 11.2h.UV index
In Tonasket, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 4 during May leads to these instructions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Tonasket, WA
- Average high temperature in May: 66°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is December (30.4°F).
- Average low temperature in May: 42.4°F
The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is December (18.1°F).
Average pressure in May
Tonasket, WA
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.93"Hg).
Average wind speed in May
Tonasket, WA
- Average wind speed in May: 4.8mph
The windiest month (with the highest average wind speed) is April (5.1mph).
The calmest month (with the lowest average wind speed) is January (4mph).
Average humidity in May
Tonasket, WA
- Average humidity in May: 56%
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are July and August (42%).
Average rainfall in May
Tonasket, WA
- Average rainfall in May: 0.91"
The wettest month (with the highest rainfall) is December (0.94").
The driest months (with the least rainfall) are July and August (0.2").
Average rainfall days in May
Tonasket, WA
- Average rainfall days in May: 8.6 days
The month with the highest number of rainy days is March (11.5 days).
The month with the least rainy days is August (2.8 days).
Average snowfall in May
Tonasket, WA
- Average snowfall in May: 0"
The month with the highest snowfall is January (3.39").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Tonasket, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is December (8.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Tonasket, WA
- Average daylight in May: 15h and 18min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- 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 January (Average sunshine: 4h and 30min).
Average sunshine days in May
Tonasket, WA
- Average sunshine days in May: 21.3 days
The month with the most sunshine days is August (26.3 days).
The month with the least sunshine days is November (15.4 days).
Average UV index in May
Tonasket, WA
- Average UV index in May: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in May
Tonasket, WA
- Average cloud cover in May: 25
The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in May
Tonasket, WA
- Average visibility in May: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).





