May weather forecastToutle, WA
May
Weather in May
The last month of the spring, May, is a refreshing month in Toutle, Washington, with an average temperature varying between 40.6°F (4.8°C) and 64.4°F (18°C).Temperature
As Toutle transitions into May, a marginal rise in the average high-temperature is observed, moving from a mild 55.9°F (13.3°C) in April to a still refreshing 64.4°F (18°C). Following the sharp contrast to daytime warmth, an average nighttime temperature of 40.6°F (4.8°C) gets registered during May.Humidity
The average relative humidity in May is 79%.Rainfall
In Toutle, in May, it is raining for 13.3 days, with typically 1.22" (31mm) of accumulated precipitation. In Toutle, during the entire year, the rain falls for 157.3 days and collects up to 16.54" (420mm) of precipitation.Snowfall
In Toutle, snow does not fall in April through October.Daylight
In May, the average length of the day is 15h and 1min.On the first day of the month, sunrise is at 5:55 am and sunset at 8:20 pm. On the last day of May, sunrise is at 5:22 am and sunset at 8:55 pm PDT.
Sunshine
In May, the average sunshine is 7.9h.UV index
The average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index, 4 during May, leads to the following recommendations:
Ensure safety - Sun damage prevention is strongly urged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Toutle, WA
- Average high temperature in May: 64.4°F
The warmest month (with the highest average high temperature) is August (77.7°F).
The month with the lowest average high temperature is December (42.4°F).
- Average low temperature in May: 40.6°F
The month with the highest average low temperature is August (49.6°F).
The coldest month (with the lowest average low temperature) is December (32.5°F).
Average pressure in May
Toutle, WA
- Average pressure in May: 30.04"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in May
Toutle, WA
- Average wind speed in May: 4mph
The windiest month (with the highest average wind speed) is January (4.8mph).
The calmest months (with the lowest average wind speed) are August and September (3.7mph).
Average humidity in May
Toutle, WA
- Average humidity in May: 79%
The months with the highest relative humidity are February and November (89%).
The months with the lowest relative humidity are July and August (73%).
Average rainfall in May
Toutle, WA
- Average rainfall in May: 1.22"
The wettest month (with the highest rainfall) is January (2.28").
The driest month (with the least rainfall) is August (0.31").
Average rainfall days in May
Toutle, WA
- Average rainfall days in May: 13.3 days
The month with the highest number of rainy days is March (17.5 days).
The month with the least rainy days is July (6.1 days).
Average snowfall in May
Toutle, WA
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.02").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Toutle, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2.4 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
Toutle, 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: 7h and 54min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 30min).
Average sunshine days in May
Toutle, WA
- Average sunshine days in May: 15.3 days
The month with the most sunshine days is August (21.9 days).
The month with the least sunshine days is April (10.5 days).
Average UV index in May
Toutle, WA
- Average UV index in May: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Toutle, WA
- Average cloud cover in May: 55
The month with the most cloud cover is February (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in May
Toutle, WA
- Average visibility in May: 4mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).





