June weather forecastRiverside, WA
June
Weather in June
June, the first month of the summer in Riverside, is a pleasant month, with an average temperature fluctuating between 47.5°F (8.6°C) and 72.5°F (22.5°C).Temperature
Riverside's transition into June sees a mild rise in the average high-temperature, edging from a refreshing 66°F (18.9°C) in May to a pleasant 72.5°F (22.5°C). Riverside experiences a significant downturn from peak daytime temperatures throughout June, with the average low-temperature dipping to a frosty 47.5°F (8.6°C).Humidity
In Riverside, the average relative humidity in June is 53%.Rainfall
In June, in Riverside, the rain falls for 7 days. Throughout June, 0.67" (17mm) of precipitation is accumulated. Throughout the year, in Riverside, there are 90.2 rainfall days, and 7.56" (192mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
The month with the longest days in Riverside is June, with an average of 16h and 6min of daylight.On the first day of June, sunrise is at 4:59 am and sunset at 8:52 pm. On the last day of the month, sunrise is at 5:00 am and sunset at 9:03 pm PDT.
Sunshine
In June, the average sunshine in Riverside is 11.6h.UV index
In Riverside, Washington, the average daily maximum UV index in June is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In June, the average maximum UV index of 5 translates into the following recommendations:
Ensure safety - Sun damage prevention is strongly urged. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Riverside, WA
- Average high temperature in June: 72.5°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is December (30.4°F).
- Average low temperature in June: 47.5°F
The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is December (18.1°F).
Average pressure in June
Riverside, WA
- Average pressure in June: 29.93"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.93"Hg).
Average wind speed in June
Riverside, WA
- Average wind speed in June: 4.9mph
The windiest month (with the highest average wind speed) is April (5.1mph).
The calmest month (with the lowest average wind speed) is January (4mph).
Average humidity in June
Riverside, WA
- Average humidity in June: 53%
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are July and August (42%).
Average rainfall in June
Riverside, WA
- Average rainfall in June: 0.67"
The wettest month (with the highest rainfall) is December (0.94").
The driest months (with the least rainfall) are July and August (0.2").
Average rainfall days in June
Riverside, WA
- Average rainfall days in June: 7 days
The month with the highest number of rainy days is March (11.5 days).
The month with the least rainy days is August (2.8 days).
Average snowfall in June
Riverside, WA
- Average snowfall in June: 0"
The month with the highest snowfall is January (3.39").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in June
Riverside, WA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is December (8.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in June /
Average sunshine in June
Riverside, WA
- Average daylight in June: 16h and 6min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in June: 11h and 36min
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 June
Riverside, WA
- Average sunshine days in June: 21.2 days
The month with the most sunshine days is August (26.3 days).
The month with the least sunshine days is November (15.4 days).
Average UV index in June
Riverside, WA
- Average UV index in June: 5
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in June
Riverside, WA
- Average cloud cover in June: 22
The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in June
Riverside, WA
- Average visibility in June: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).





