Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
An escalation in the average high-temperature is seen with the onset of April, moving from an icy 39.7°F (4.3°C) in March to a fresh 53.2°F (11.8°C). An average temperature of 36.3°F (2.4°C) is recorded during the nights in April.Humidity
In April, the average relative humidity is 59%.Rainfall
In Simpson, in April, during 11.3 rainfall days, 0.71" (18mm) of precipitation is typically accumulated. In Simpson, during the entire year, the rain falls for 98.7 days and collects up to 8.23" (209mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. In Simpson, during April, snow falls for 4.5 days and regularly aggregates up to 1.46" (37mm) of snow. In Simpson, during the entire year, snow falls for 53.5 days and aggregates up to 14.25" (362mm) of snow.Daylight
The average length of the day in April is 13h and 45min.On the first day of April, sunrise is at 6:56 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 8:35 pm MDT.
Sunshine
The average sunshine in April is 9.5h.UV index
In April, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: In April, a regular UV index of 3 translates into these guidelines:
Take necessary precautions - Protection from skin and eye injury is mandatory. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature?
What is the average humidity in April?
How much does it rain in April?
How much does it snow in April?
How many hours of daylight does Simpson have in April?
What time are sunrise and sunset in April?
How many hours of sunshine does Simpson have in April?
What is the UV index intensity in April?
Average temperature in April
Simpson, MT
- Average high temperature in April: 53.2°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The months with the lowest average high temperature are January and December (27.1°F).
- Average low temperature in April: 36.3°F
The month with the highest average low temperature is August (61.3°F).
The coldest month (with the lowest average low temperature) is February (13.5°F).
Average pressure in April
Simpson, MT
- Average pressure in April: 29.92"Hg
The months with the highest atmospheric pressure are January and February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in April
Simpson, MT
- Average wind speed in April: 10.6mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).
Average humidity in April
Simpson, MT
- Average humidity in April: 59%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is August (40%).
Average rainfall in April
Simpson, MT
- Average rainfall in April: 0.71"
The wettest month (with the highest rainfall) is June (1.5").
The driest month (with the least rainfall) is December (0.31").
Average rainfall days in April
Simpson, MT
- Average rainfall days in April: 11.3 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is February (4 days).
Average snowfall in April
Simpson, MT
- Average snowfall in April: 1.46"
The month with the highest snowfall is February (2.72").
The months with the least snowfall are June, July and August (0").
Average snowfall days in April
Simpson, MT
- Average snowfall days in April: 4.5 days
The month with the highest number of snowfall days is February (11 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in April /
Average sunshine in April
Simpson, MT
- Average daylight in April: 13h and 5min
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 April: 9h and 3min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).
Average sunshine days in April
Simpson, MT
- Average sunshine days in April: 12.8 days
The month with the most sunshine days is September (20.3 days).
The month with the least sunshine days is April (12.8 days).
Average UV index in April
Simpson, MT
- Average UV index in April: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in April
Simpson, MT
- Average cloud cover in April: 39
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 16).
Average visibility in April
Simpson, MT
- Average visibility in April: 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).
Simpson, Montana, USA
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