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
In April, the meteorological conditions change with the average high-temperature moving from a cold 38.8°F (3.8°C) in March to a frosty 48.7°F (9.3°C). In Big Arm, the expected average low-temperature for April is a freezing cold 30.2°F (-1°C).Humidity
The average relative humidity in April is 75%.Rainfall
In Big Arm, during April, the rain falls for 18.8 days and regularly aggregates up to 2.05" (52mm) of precipitation. In Big Arm, during the entire year, the rain falls for 160.2 days and collects up to 18.11" (460mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. In Big Arm, during April, snow falls for 8.3 days and regularly aggregates up to 3.27" (83mm) of snow. In Big Arm, during the entire year, snow falls for 99 days and aggregates up to 47.28" (1201mm) of snow.Daylight
In April, the average length of the day is 13h and 41min.On the first day of the month, sunrise is at 7:13 am and sunset at 8:07 pm. On the last day of April, sunrise is at 6:19 am and sunset at 8:49 pm MDT.
Sunshine
The average sunshine in April is 8.9h.UV index
In April, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 2 in April interprets into the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. When the Sun is at its strongest around midday, find shade and limit exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
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 many days does it snow in April?
What is the average length of the day in April?
What time are sunrise and sunset in April?
How many hours of sunshine does Big Arm have in April?
What is the UV index reading in April?
Average temperature in April
Big Arm, MT
- Average high temperature in April: 48.7°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is December (27.9°F).
- Average low temperature in April: 30.2°F
The months with the highest average low temperature are July and August (48.9°F).
The coldest month (with the lowest average low temperature) is December (16.7°F).
Average pressure in April
Big Arm, MT
- Average pressure in April: 29.99"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in April
Big Arm, MT
- Average wind speed in April: 4.8mph
The windiest month (with the highest average wind speed) is April (4.8mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in April
Big Arm, 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 (51%).
Average rainfall in April
Big Arm, MT
- Average rainfall in April: 2.05"
The wettest month (with the highest rainfall) is June (2.2").
The driest months (with the least rainfall) are July and August (0.55").
Average rainfall days in April
Big Arm, MT
- Average rainfall days in April: 18.8 days
The months with the highest number of rainy days are March and April (18.8 days).
The month with the least rainy days is August (7 days).
Average snowfall in April
Big Arm, MT
- Average snowfall in April: 3.27"
The month with the highest snowfall is February (10.28").
The months with the least snowfall are June, July and August (0").
Average snowfall days in April
Big Arm, MT
- Average snowfall days in April: 8.3 days
The month with the highest number of snowfall days is December (19.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in April /
Average sunshine in April
Big Arm, MT
- Average daylight in April: 13h and 4min
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: 8h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in April
Big Arm, MT
- Average sunshine days in April: 7.7 days
The month with the most sunshine days is July (21.3 days).
The month with the least sunshine days is March (6.4 days).
Average UV index in April
Big Arm, MT
- Average UV index in April: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in April
Big Arm, MT
- Average cloud cover in April: 42
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 14).
Average visibility in April
Big Arm, 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).
Big Arm, Montana, USA
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