May weather forecastEllensburg, WA
May
Weather in May
The last month of the spring, May, is an enjoyable month in Ellensburg, Washington, with temperature in the range of an average low of 43.3°F (6.3°C) and an average high of 64.9°F (18.3°C).Temperature
With the onset of May, the average high-temperature slightly shifts from April's fresh 54.5°F (12.5°C) to an enjoyable 64.9°F (18.3°C). Ellensburg documents a substantial deviation from daytime highs with a consistent low-temperature of 43.3°F (6.3°C) during May nights.Humidity
In Ellensburg, the average relative humidity in May is 58%.Rainfall
In Ellensburg, in May, it is raining for 9.6 days, with typically 0.91" (23mm) of accumulated precipitation. In Ellensburg, during the entire year, the rain falls for 99.9 days and collects up to 8.66" (220mm) of precipitation.Snowfall
In Ellensburg, Washington, snow does not fall in May through August.Daylight
In May, the average length of the day in Ellensburg is 15h and 5min.On the first day of the month, sunrise is at 5:45 am and sunset at 8:13 pm. On the last day of May, sunrise is at 5:10 am and sunset at 8:49 pm PDT.
Sunshine
The average sunshine in May in Ellensburg, Washington, is 11h.UV index
In May, the average daily maximum UV index in Ellensburg, Washington, is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: A maximum high daily UV index of 4 during May translates into the following directions:
Act with care - Obligation to protect against skin and eye damage is highlighted. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Ellensburg, WA
- Average high temperature in May: 64.9°F
The warmest months (with the highest average high temperature) are July and August (82°F).
The month with the lowest average high temperature is December (33.3°F).
- Average low temperature in May: 43.3°F
The month with the highest average low temperature is August (55.2°F).
The coldest month (with the lowest average low temperature) is December (21.4°F).
Average pressure in May
Ellensburg, WA
- Average pressure in May: 29.97"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.94"Hg).
Average wind speed in May
Ellensburg, WA
- Average wind speed in May: 7.7mph
The windiest month (with the highest average wind speed) is June (8.9mph).
The calmest month (with the lowest average wind speed) is December (4.2mph).
Average humidity in May
Ellensburg, WA
- Average humidity in May: 58%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are July and August (46%).
Average rainfall in May
Ellensburg, WA
- Average rainfall in May: 0.91"
The wettest month (with the highest rainfall) is December (1.3").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in May
Ellensburg, WA
- Average rainfall days in May: 9.6 days
The month with the highest number of rainy days is March (12.4 days).
The month with the least rainy days is August (2.8 days).
Average snowfall in May
Ellensburg, WA
- Average snowfall in May: 0"
The month with the highest snowfall is December (4.65").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in May
Ellensburg, WA
- Average snowfall days in May: 0 days
The months with the highest number of snowfall days are January and December (8.7 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Ellensburg, 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: 11h and 0min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 4h and 48min).
Average sunshine days in May
Ellensburg, WA
- Average sunshine days in May: 19.6 days
The month with the most sunshine days is July (27.1 days).
The month with the least sunshine days is February (13.5 days).
Average UV index in May
Ellensburg, WA
- Average UV index in May: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in May
Ellensburg, WA
- Average cloud cover in May: 26
The month with the most cloud cover is January (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in May
Ellensburg, WA
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (4mi).
