June weather forecastProsser, WA
June
Weather in June
The first month of the summer, June, is a warm month in Prosser, Washington, with an average temperature ranging between max 78.6°F (25.9°C) and min 55.9°F (13.3°C).Temperature
June's arrival brings a modest temperature shift, moving from a pleasant 71.8°F (22.1°C) in May to a moderately hot 78.6°F (25.9°C). In Prosser, the nighttime temperature registers a significant drop from daytime peaks to an average of 55.9°F (13.3°C) in June.Humidity
In Prosser, the average relative humidity in June is 45%.Rainfall
In Prosser, in June, it is raining for 6.6 days, with typically 0.55" (14mm) of accumulated precipitation. Throughout the year, there are 97.8 rainfall days, and 7.44" (189mm) of precipitation is accumulated.Snowfall
April through August and October are months without snowfall.Daylight
June has the longest days of the year, with an average of 15h and 42min of daylight.On the first day of the month, sunrise is at 5:10 am and sunset at 8:43 pm. On the last day of June, in Prosser, sunrise is at 5:11 am and sunset at 8:54 pm PDT.
Sunshine
In Prosser, the average sunshine in June is 11.6h.UV index
In June, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The average daily UV index of 6 in June transforms into the following instructions:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Prosser, WA
- Average high temperature in June: 78.6°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is December (37.2°F).
- Average low temperature in June: 55.9°F
The month with the highest average low temperature is August (63.1°F).
The coldest month (with the lowest average low temperature) is December (27°F).
Average pressure in June
Prosser, WA
- Average pressure in June: 29.93"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in June
Prosser, WA
- Average wind speed in June: 7.8mph
The windiest month (with the highest average wind speed) is April (8.6mph).
The calmest month (with the lowest average wind speed) is December (5.6mph).
Average humidity in June
Prosser, WA
- Average humidity in June: 45%
The month with the highest relative humidity is January (81%).
The months with the lowest relative humidity are July and August (37%).
Average rainfall in June
Prosser, WA
- Average rainfall in June: 0.55"
The wettest months (with the highest rainfall) are January and December (0.94").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days in June
Prosser, WA
- Average rainfall days in June: 6.6 days
The month with the highest number of rainy days is March (11.8 days).
The month with the least rainy days is July (3.6 days).
Average snowfall in June
Prosser, WA
- Average snowfall in June: 0"
The month with the highest snowfall is February (2.01").
The months with the least snowfall are April, May, June, July, August and October (0").
Average snowfall days in June
Prosser, WA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is December (4.6 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).
Average daylight in June /
Average sunshine in June
Prosser, WA
- Average daylight in June: 15h and 42min
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 42min).
- 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: 5h and 12min).
Average sunshine days in June
Prosser, WA
- Average sunshine days in June: 21.3 days
The month with the most sunshine days is July (25.8 days).
The month with the least sunshine days is February (15.5 days).
Average UV index in June
Prosser, WA
- Average UV index in June: 6
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 June
Prosser, WA
- Average cloud cover in June: 20
The month with the most cloud cover is January (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in June
Prosser, WA
- Average visibility in June: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
