May weather forecastEphrata, WA
May
Weather in May
The last month of the spring, May, is a pleasant month in Ephrata, Washington, with an average temperature ranging between max 70.3°F (21.3°C) and min 47.8°F (8.8°C).Temperature
As May arrives, a rise in the average high-temperature is observed, moving from a mild 59.5°F (15.3°C) in April to an agreeable 70.3°F (21.3°C). May nights in Ephrata see a notable contrast from daytime highs, with the nighttime temperature averaging at a chilly 47.8°F (8.8°C).Humidity
The average relative humidity in May in Ephrata is 50%.Rainfall
In Ephrata, Washington, in May, during 9.1 rainfall days, 0.94" (24mm) of precipitation is typically accumulated. In Ephrata, during the entire year, the rain falls for 95.2 days and collects up to 7.91" (201mm) of precipitation.Snowfall
May through August and October are months without snowfall.Daylight
In Ephrata, the average length of the day in May is 15h and 8min.On the first day of May, sunrise is at 5:40 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 5:05 am and sunset at 8:46 pm PDT.
Sunshine
The average sunshine in May is 10.8h.UV index
The average daily maximum UV index in May in Ephrata is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum UV index of 5 in May translates into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Ephrata, WA
- Average high temperature in May: 70.3°F
The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is December (33.4°F).
- Average low temperature in May: 47.8°F
The month with the highest average low temperature is August (61.3°F).
The coldest month (with the lowest average low temperature) is December (23.2°F).
Average pressure in May
Ephrata, WA
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in May
Ephrata, WA
- Average wind speed in May: 7mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest months (with the lowest average wind speed) are January and December (5.3mph).
Average humidity in May
Ephrata, WA
- Average humidity in May: 50%
The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are July and August (37%).
Average rainfall in May
Ephrata, WA
- Average rainfall in May: 0.94"
The wettest month (with the highest rainfall) is January (1.02").
The driest month (with the least rainfall) is August (0.24").
Average rainfall days in May
Ephrata, WA
- Average rainfall days in May: 9.1 days
The month with the highest number of rainy days is March (12.3 days).
The month with the least rainy days is August (4.2 days).
Average snowfall in May
Ephrata, WA
- Average snowfall in May: 0"
The month with the highest snowfall is December (3.98").
The months with the least snowfall are May, June, July, August and October (0").
Average snowfall days in May
Ephrata, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is December (7.8 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Ephrata, WA
- Average daylight in May: 15h and 6min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in May: 10h and 48min
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
Ephrata, WA
- Average sunshine days in May: 20.1 days
The month with the most sunshine days is July (25.8 days).
The month with the least sunshine days is March (15.6 days).
Average UV index in May
Ephrata, 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
Ephrata, WA
- Average cloud cover in May: 27
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in May
Ephrata, WA
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
