June weather forecastCuster, WA
June
Weather in June
June, the first month of the summer in Custer, is still a comfortable month, with an average temperature ranging between max 64.9°F (18.3°C) and min 50.2°F (10.1°C).Temperature
Custer, Washington, records an average high-temperature of a still refreshing 64.9°F (18.3°C) in June, maintaining a close correlation with May's 61.7°F (16.5°C). An average low-temperature of 50.2°F (10.1°C) is noted during the nights in June.Humidity
In Custer, the average relative humidity in June is 76%.Rainfall
In Custer, in June, during 11.9 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. Throughout the year, there are 176.1 rainfall days, and 43.78" (1112mm) of precipitation is accumulated.Snowfall
In Custer, snow does not fall in May through October.Daylight
The month with the longest days is June, with an average of 16h and 6min of daylight.On the first day of the month, sunrise is at 5:10 am and sunset at 9:06 pm. On the last day of June, sunrise is at 5:10 am and sunset at 9:18 pm PDT.
Sunshine
The average sunshine in June is 9.3h.UV index
The months with the highest UV index are June and July, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: An average maximum UV index of 5 in June leads to these recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Custer, WA
- Average high temperature in June: 64.9°F
The warmest month (with the highest average high temperature) is August (70°F).
The month with the lowest average high temperature is December (41.9°F).
- Average low temperature in June: 50.2°F
The month with the highest average low temperature is August (54.9°F).
The coldest month (with the lowest average low temperature) is February (35.8°F).
Average pressure in June
Custer, WA
- Average pressure in June: 30.01"Hg
The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is March (30"Hg).
Average wind speed in June
Custer, WA
- Average wind speed in June: 4.6mph
The windiest months (with the highest average wind speed) are November and December (6.3mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in June
Custer, WA
- Average humidity in June: 76%
The months with the highest relative humidity are January and November (83%).
The month with the lowest relative humidity is July (74%).
Average rainfall in June
Custer, WA
- Average rainfall in June: 1.42"
The wettest month (with the highest rainfall) is November (7.13").
The driest month (with the least rainfall) is July (0.67").
Average rainfall days in June
Custer, WA
- Average rainfall days in June: 11.9 days
The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (6.1 days).
Average snowfall in June
Custer, WA
- Average snowfall in June: 0"
The month with the highest snowfall is February (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in June
Custer, WA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is February (3.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in June /
Average sunshine in June
Custer, 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 18min).
- Average sunshine in June: 9h and 18min
The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The months with the least sunshine are January and December (Average sunshine: 3h and 54min).
Average sunshine days in June
Custer, WA
- Average sunshine days in June: 15.3 days
The month with the most sunshine days is August (23.2 days).
The month with the least sunshine days is November (8.8 days).
Average UV index in June
Custer, WA
- Average UV index in June: 5
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in June
Custer, WA
- Average cloud cover in June: 41
The months with the most cloud cover are January and December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in June
Custer, 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).





