April weather forecastPerma, MT
April
Weather in April
April in Perma, Montana, is a chilly spring month, with an average temperature varying between 48.7°F (9.3°C) and 29.8°F (-1.2°C).Temperature
With the onset of April, Perma experiences a temperature shift, with the average high-temperature moving from a wintry 39.2°F (4°C) in March to a chilly 48.7°F (9.3°C). In April, the recorded average low-temperature is a freezing cold 29.8°F (-1.2°C).Humidity
The average relative humidity in April in Perma is 75%.Rainfall
In April, the rain falls for 13.8 days. Throughout April, 1.34" (34mm) of precipitation is accumulated. In Perma, during the entire year, the rain falls for 129.9 days and collects up to 13.5" (343mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. In April, it is snowing for 4.3 days. Throughout April, 2.32" (59mm) of snow is accumulated. In Perma, during the entire year, snow falls for 67.1 days and aggregates up to 28.27" (718mm) of snow.Daylight
The average length of the day in April in Perma is 13h and 40min.On the first day of the month, sunrise is at 7:15 am and sunset at 8:08 pm. On the last day of April, sunrise is at 6:21 am and sunset at 8:49 pm MDT.
Sunshine
In Perma, the average sunshine in April is 9h.UV index
The average daily maximum UV index in April in Perma is 2. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 2 during April leads to these instructions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Perma, MT
- Average high temperature in April: 48.7°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is December (28.4°F).
- Average low temperature in April: 29.8°F
The month with the highest average low temperature is August (49.5°F).
The coldest month (with the lowest average low temperature) is December (16.7°F).
Average pressure in April
Perma, MT
- Average pressure in April: 30"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in April
Perma, MT
- Average wind speed in April: 4.8mph
The windiest month (with the highest average wind speed) is April (4.8mph).
The calmest months (with the lowest average wind speed) are January, August and December (3.9mph).
Average humidity in April
Perma, MT
- Average humidity in April: 75%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (49%).
Average rainfall in April
Perma, MT
- Average rainfall in April: 1.34"
The wettest month (with the highest rainfall) is June (2.2").
The driest months (with the least rainfall) are July and August (0.63").
Average rainfall days in April
Perma, MT
- Average rainfall days in April: 13.8 days
The month with the highest number of rainy days is June (15.7 days).
The month with the least rainy days is August (7.4 days).
Average snowfall in April
Perma, MT
- Average snowfall in April: 2.32"
The month with the highest snowfall is February (6.5").
The months with the least snowfall are June, July and August (0").
Average snowfall days in April
Perma, MT
- Average snowfall days in April: 4.3 days
The month with the highest number of snowfall days is December (14.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in April /
Average sunshine in April
Perma, MT
- Average daylight in April: 13h and 42min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in April: 9h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in April
Perma, MT
- Average sunshine days in April: 13 days
The month with the most sunshine days is July (20.8 days).
The month with the least sunshine days is February (11 days).
Average UV index in April
Perma, MT
- Average UV index in April: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in April
Perma, MT
- Average cloud cover in April: 42
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in April
Perma, MT
- Average visibility in April: 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).
