June weather forecastCuster, MT
June
Weather in June
June, the first month of the summer in Custer, is a moderately hot month, with temperature in the range of an average low of 55.9°F (13.3°C) and an average high of 77.2°F (25.1°C).Temperature
As May transitions into June, Custer sees a rise in the average high-temperature, moving from a comfortable 65.8°F (18.8°C) to a moderately hot 77.2°F (25.1°C). In June, Custer experiences a temperature dip to an average of 55.9°F (13.3°C) at night.Humidity
In Custer, the average relative humidity in June is 50%.Rainfall
In Custer, in June, it is raining for 11.8 days, with typically 1.65" (42mm) of accumulated precipitation. Throughout the year, there are 107 rainfall days, and 12.17" (309mm) of precipitation is accumulated.Snowfall
In Custer, snow does not fall in June through August.Daylight
The month with the longest days is June, with an average of 15h and 42min of daylight.On the first day of June in Custer, Montana, sunrise is at 5:21 am and sunset at 8:54 pm. On the last day of the month, sunrise is at 5:22 am and sunset at 9:05 pm MDT.
Sunshine
In June, the average sunshine in Custer is 11.2h.UV index
In June, the average daily maximum UV index in Custer is 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: An average UV index of 6 in June transforms into this advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. 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
Custer, MT
- Average high temperature in June: 77.2°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The months with the lowest average high temperature are January and December (31.1°F).
- Average low temperature in June: 55.9°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (17.6°F).
Average pressure in June
Custer, MT
- Average pressure in June: 29.84"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in June
Custer, MT
- Average wind speed in June: 9.1mph
The windiest month (with the highest average wind speed) is April (10.2mph).
The calmest months (with the lowest average wind speed) are July and August (8.2mph).
Average humidity in June
Custer, MT
- Average humidity in June: 50%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (38%).
Average rainfall in June
Custer, MT
- Average rainfall in June: 1.65"
The wettest month (with the highest rainfall) is May (1.85").
The driest month (with the least rainfall) is December (0.55").
Average rainfall days in June
Custer, MT
- Average rainfall days in June: 11.8 days
The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is December (4.5 days).
Average snowfall in June
Custer, MT
- Average snowfall in June: 0"
The month with the highest snowfall is February (4.29").
The months with the least snowfall are June, July and August (0").
Average snowfall days in June
Custer, MT
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is February (10.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in June /
Average sunshine in June
Custer, MT
- 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 12min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).
Average sunshine days in June
Custer, MT
- Average sunshine days in June: 14.6 days
The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is April (13.5 days).
Average UV index in June
Custer, MT
- 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, March, November and December (UV index 2).
Average cloud cover in June
Custer, MT
- Average cloud cover in June: 24
The month with the most cloud cover is February (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility in June
Custer, MT
- 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).
