May weather forecastSalmon Creek, WA
May
Weather in May
The last month of the spring, May, is a refreshing month in Salmon Creek, Washington, with an average temperature varying between 65.8°F (18.8°C) and 43.2°F (6.2°C).Temperature
Salmon Creek in May observes a minor temperature shift, with average high-temperatures adjusting from a mild 57.4°F (14.1°C) in April to a still refreshing 65.8°F (18.8°C). Compared to daytime temperatures, Salmon Creek's temperature drops significantly, averaging a chilly 43.2°F (6.2°C) during the nights of May.Humidity
In Salmon Creek, the average relative humidity in May is 75%.Rainfall
In Salmon Creek, in May, it is raining for 13.4 days, with typically 1.97" (50mm) of accumulated precipitation. In Salmon Creek, during the entire year, the rain falls for 179.8 days and collects up to 35.35" (898mm) of precipitation.Snowfall
In Salmon Creek, snow does not fall in April through October.Daylight
The average length of the day in May is 14h and 57min.On the first day of May in Salmon Creek, Washington, sunrise is at 5:56 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 5:24 am and sunset at 8:52 pm PDT.
Sunshine
In May, the average sunshine in Salmon Creek is 8.7h.UV index
In Salmon Creek, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In May, the maximum UV index of 4 suggests these recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Salmon Creek, WA
- Average high temperature in May: 65.8°F
The warmest month (with the highest average high temperature) is August (80.2°F).
The month with the lowest average high temperature is December (43.3°F).
- Average low temperature in May: 43.2°F
The month with the highest average low temperature is August (53.1°F).
The coldest month (with the lowest average low temperature) is December (33.4°F).
Average pressure in May
Salmon Creek, WA
- Average pressure in May: 30.03"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in May
Salmon Creek, WA
- Average wind speed in May: 4.1mph
The windiest month (with the highest average wind speed) is January (5.2mph).
The calmest months (with the lowest average wind speed) are August and September (3.9mph).
Average humidity in May
Salmon Creek, WA
- Average humidity in May: 75%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is August (67%).
Average rainfall in May
Salmon Creek, WA
- Average rainfall in May: 1.97"
The wettest months (with the highest rainfall) are January and December (5.2").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in May
Salmon Creek, WA
- Average rainfall days in May: 13.4 days
The month with the highest number of rainy days is March (20.3 days).
The month with the least rainy days is August (5.1 days).
Average snowfall in May
Salmon Creek, WA
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.77").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Salmon Creek, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Salmon Creek, 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 48min).
- Average sunshine in May: 8h and 42min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in May
Salmon Creek, WA
- Average sunshine days in May: 15.4 days
The month with the most sunshine days is July (23.7 days).
The month with the least sunshine days is February (7.8 days).
Average UV index in May
Salmon Creek, 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, November and December (UV index 2).
Average cloud cover in May
Salmon Creek, WA
- Average cloud cover in May: 47
The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in May
Salmon Creek, WA
- Average visibility in May: 5mi
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (5mi).





