April weather forecastGarrison, MT
April
Weather in April
April is a frosty spring month in Garrison, Montana, with an average temperature varying between 43.9°F (6.6°C) and 26.1°F (-3.3°C).Temperature
April witnesses a minor rise in the average high-temperature, transitioning from a wintry 35.4°F (1.9°C) in March to a frosty 43.9°F (6.6°C). April nights observe an average temperature dip to a subzero cold 26.1°F (-3.3°C).Humidity
In April, the average relative humidity is 76%.Rainfall
In April, the rain falls for 15.5 days. Throughout April, 2.36" (60mm) of precipitation is accumulated. Throughout the year, there are 122.8 rainfall days, and 17.13" (435mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. In Garrison, in April, during 16.4 snowfall days, 12.44" (316mm) of snow is typically accumulated. Throughout the year, there are 125.4 snowfall days, and 77.91" (1979mm) of snow is accumulated.Daylight
In Garrison, the average length of the day in April is 13h and 37min.On the first day of April, sunrise is at 7:08 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 8:39 pm MDT.
Sunshine
In April, the average sunshine is 9h.UV index
January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: A typical high UV index of 2 in April suggests the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Garrison, MT
- Average high temperature in April: 43.9°F
The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is December (25.7°F).
- Average low temperature in April: 26.1°F
The month with the highest average low temperature is August (47.3°F).
The coldest month (with the lowest average low temperature) is December (12.6°F).
Average pressure in April
Garrison, MT
- Average pressure in April: 29.99"Hg
The months with the highest atmospheric pressure are January and December (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in April
Garrison, MT
- Average wind speed in April: 6.3mph
The windiest months (with the highest average wind speed) are January, April and November (6.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in April
Garrison, MT
- Average humidity in April: 76%
The months with the highest relative humidity are January and February (88%).
The months with the lowest relative humidity are July and August (49%).
Average rainfall in April
Garrison, MT
- Average rainfall in April: 2.36"
The wettest month (with the highest rainfall) is June (2.52").
The driest month (with the least rainfall) is August (0.67").
Average rainfall days in April
Garrison, MT
- Average rainfall days in April: 15.5 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is August (7.3 days).
Average snowfall in April
Garrison, MT
- Average snowfall in April: 12.44"
The month with the highest snowfall is February (12.76").
The months with the least snowfall are July and August (0").
Average snowfall days in April
Garrison, MT
- Average snowfall days in April: 16.4 days
The month with the highest number of snowfall days is February (20.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in April /
Average sunshine in April
Garrison, MT
- Average daylight in April: 13h and 36min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in April: 9h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in April
Garrison, MT
- Average sunshine days in April: 6.3 days
The month with the most sunshine days is July (21.5 days).
The month with the least sunshine days is April (6.3 days).
Average UV index in April
Garrison, MT
- Average UV index in April: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in April
Garrison, MT
- Average cloud cover in April: 43
The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility in April
Garrison, MT
- Average visibility in April: 5mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
