May weather forecastYakima, WA

May
Weather in May
May, the last month of the spring in Yakima, is an agreeable month, with temperature in the range of an average low of 47.5°F (8.6°C) and an average high of 69.3°F (20.7°C).Temperature
Yakima's weather shows a temperature rise with the arrival of May, moving from a mild 59.2°F (15.1°C) in April to a pleasant 69.3°F (20.7°C). Despite a significant deviation from daily highs, May sees an average nighttime temperature of 47.5°F (8.6°C).Humidity
The average relative humidity in May in Yakima is 51%.Rainfall
In Yakima, in May, it is raining for 6.8 days, with typically 0.63" (16mm) of accumulated precipitation. Throughout the year, there are 82.2 rainfall days, and 5.43" (138mm) of precipitation is accumulated.Snowfall
April through August and October are months without snowfall in Yakima.Daylight
In May, the average length of the day in Yakima is 15h and 3min.On the first day of May, sunrise is at 5:45 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 5:12 am and sunset at 8:47 pm PDT.
Sunshine
In Yakima, the average sunshine in May is 11.4h.UV index
In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: An average maximum UV index of 5 in May leads to these recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Yakima, WA
- Average high temperature in May: 69.3°F
The warmest month (with the highest average high temperature) is August (86.5°F).
The month with the lowest average high temperature is December (36.9°F).
- Average low temperature in May: 47.5°F
The month with the highest average low temperature is August (60.3°F).
The coldest month (with the lowest average low temperature) is December (25.5°F).
Average pressure in May
Yakima, WA
- Average pressure in May: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).
Average wind speed in May
Yakima, WA
- Average wind speed in May: 6.8mph
The windiest month (with the highest average wind speed) is June (7.1mph).
The calmest month (with the lowest average wind speed) is December (4.4mph).
Average humidity in May
Yakima, WA
- Average humidity in May: 51%
The month with the highest relative humidity is January (81%).
The months with the lowest relative humidity are July and August (39%).
Average rainfall in May
Yakima, WA
- Average rainfall in May: 0.63"
The wettest month (with the highest rainfall) is January (0.87").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in May
Yakima, WA
- Average rainfall days in May: 6.8 days
The month with the highest number of rainy days is March (10.8 days).
The month with the least rainy days is August (2 days).
Average snowfall in May
Yakima, WA
- Average snowfall in May: 0"
The month with the highest snowfall is December (2.76").
The months with the least snowfall are April, May, June, July, August and October (0").
Average snowfall days in May
Yakima, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is December (5.4 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in May /
Average sunshine in May
Yakima, WA
- Average daylight in May: 15h and 0min
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: 11h and 24min
The months with the most sunshine are July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in May
Yakima, WA
- Average sunshine days in May: 21.2 days
The month with the most sunshine days is July (27.5 days).
The month with the least sunshine days is February (15.8 days).
Average UV index in May
Yakima, 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
Yakima, WA
- Average cloud cover in May: 22
The month with the most cloud cover is January (Cloud cover 40).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility in May
Yakima, WA
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).





