May weather forecastYelm, WA
May
Weather in May
The last month of the spring, May, is an enjoyable month in Yelm, Washington, with an average temperature varying between 64.9°F (18.3°C) and 41.9°F (5.5°C).Temperature
Yelm's transition into May sees a mild rise in the average high-temperature, edging from a refreshing 56.3°F (13.5°C) in April to a comfortable 64.9°F (18.3°C). Significant variation from daytime temperatures marks May in Yelm, with the month recording a nightly average of 41.9°F (5.5°C).Humidity
In Yelm, the average relative humidity in May is 77%.Rainfall
In Yelm, in May, during 14.5 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. In Yelm, during the entire year, the rain falls for 178.1 days and collects up to 33.82" (859mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In Yelm, the average length of the day in May is 15h and 5min.On the first day of May, sunrise is at 5:53 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 5:19 am and sunset at 8:57 pm PDT.
Sunshine
In Yelm, the average sunshine in May is 8.5h.UV index
In May, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: In May, a daily UV index of 4 turns into the following recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. When the Sun is at its strongest around midday, find shade and limit exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Yelm, WA
- Average high temperature in May: 64.9°F
The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is December (43°F).
- Average low temperature in May: 41.9°F
The month with the highest average low temperature is August (50.5°F).
The coldest month (with the lowest average low temperature) is December (32.9°F).
Average pressure in May
Yelm, WA
- Average pressure in May: 30.03"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
Yelm, WA
- Average wind speed in May: 4.1mph
The windiest month (with the highest average wind speed) is January (4.9mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in May
Yelm, WA
- Average humidity in May: 77%
The months with the highest relative humidity are January, February, November and December (87%).
The month with the lowest relative humidity is July (70%).
Average rainfall in May
Yelm, WA
- Average rainfall in May: 1.93"
The wettest month (with the highest rainfall) is December (5.28").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in May
Yelm, WA
- Average rainfall days in May: 14.5 days
The month with the highest number of rainy days is March (20.2 days).
The month with the least rainy days is August (5.3 days).
Average snowfall in May
Yelm, WA
- Average snowfall in May: 0"
The month with the highest snowfall is February (2.4").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Yelm, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (3.2 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
Yelm, WA
- Average daylight in May: 15h and 6min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in May: 8h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 4h and 0min).
Average sunshine days in May
Yelm, WA
- Average sunshine days in May: 15.7 days
The month with the most sunshine days is August (23.4 days).
The months with the least sunshine days are February and March (8.8 days).
Average UV index in May
Yelm, 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
Yelm, WA
- Average cloud cover in May: 48
The months with the most cloud cover are January, February, March and December (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in May
Yelm, WA
- Average visibility in May: 5mi
The months with the highest visibility are April, May, June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, November and December (4mi).
