April weather forecastHarrison, MT
April
Weather in April
April in Harrison, Montana, is a fresh spring month, with an average temperature varying between 50.4°F (10.2°C) and 30.4°F (-0.9°C).Temperature
Entering April, Harrison sees a temperature rise, with the average high-temperature advancing from March's wintry 41°F (5°C) to a fresh 50.4°F (10.2°C). During April, Harrison's temperature averages to a freezing cold 30.4°F (-0.9°C) at night.Humidity
In April, the average relative humidity is 67%.Rainfall
In Harrison, in April, it is raining for 16.5 days, with typically 1.46" (37mm) of accumulated precipitation. Throughout the year, there are 134.2 rainfall days, and 11.34" (288mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. In Harrison, in April, during 7.5 snowfall days, 3.86" (98mm) of snow is typically accumulated. Throughout the year, there are 79.6 snowfall days, and 30.08" (764mm) of snow is accumulated.Daylight
In April, the average length of the day in Harrison is 13h and 34min.On the first day of April, sunrise is at 7:05 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 8:33 pm MDT.
Sunshine
In April, the average sunshine in Harrison is 9.8h.UV index
In Harrison, the average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.Note: A daily high UV index of 3 in April leads to these guidelines:
Act with care - Obligation to protect against skin and eye damage is highlighted. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Harrison, MT
- Average high temperature in April: 50.4°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is December (28°F).
- Average low temperature in April: 30.4°F
The month with the highest average low temperature is August (50.5°F).
The coldest month (with the lowest average low temperature) is December (12.7°F).
Average pressure in April
Harrison, MT
- Average pressure in April: 29.97"Hg
The months with the highest atmospheric pressure are January and December (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in April
Harrison, MT
- Average wind speed in April: 5.5mph
The windiest month (with the highest average wind speed) is April (5.5mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in April
Harrison, MT
- Average humidity in April: 67%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (44%).
Average rainfall in April
Harrison, MT
- Average rainfall in April: 1.46"
The wettest month (with the highest rainfall) is June (1.57").
The driest month (with the least rainfall) is August (0.51").
Average rainfall days in April
Harrison, MT
- Average rainfall days in April: 16.5 days
The month with the highest number of rainy days is April (16.5 days).
The month with the least rainy days is August (7.6 days).
Average snowfall in April
Harrison, MT
- Average snowfall in April: 3.86"
The month with the highest snowfall is February (6.02").
The months with the least snowfall are July and August (0").
Average snowfall days in April
Harrison, MT
- Average snowfall days in April: 7.5 days
The month with the highest number of snowfall days is February (16.5 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in April /
Average sunshine in April
Harrison, MT
- Average daylight in April: 13h and 36min
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 48min).
- Average sunshine in April: 9h and 48min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).
Average sunshine days in April
Harrison, MT
- Average sunshine days in April: 9.3 days
The month with the most sunshine days is September (18.7 days).
The month with the least sunshine days is April (9.3 days).
Average UV index in April
Harrison, MT
- Average UV index in April: 3
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in April
Harrison, MT
- Average cloud cover in April: 36
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in April
Harrison, MT
- Average visibility in April: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
