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 Boulder, Montana, the average high-temperature in April marginally rises from a cold 38.7°F (3.7°C) in March to a frosty 46.4°F (8°C). The average low-temperature, in Boulder, is 27°F (-2.8°C).Humidity
In Boulder, the average relative humidity in April is 72%.Rainfall
In Boulder, during April, the rain falls for 14.8 days and regularly aggregates up to 2.01" (51mm) of precipitation. In Boulder, Montana, during the entire year, the rain falls for 133.7 days and collects up to 16.38" (416mm) of precipitation.Snowfall
Months with snowfall in Boulder are January through June, September through December. In Boulder, during April, snow falls for 12.3 days and regularly aggregates up to 7.8" (198mm) of snow. Throughout the year, there are 105.8 snowfall days, and 55.12" (1400mm) of snow is accumulated.Daylight
In Boulder, the average length of the day in April is 13h and 36min.On the first day of April, sunrise is at 7:07 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 8:35 pm MDT.
Sunshine
In April, the average sunshine in Boulder is 9.1h.UV index
In April, the average daily maximum UV index in Boulder is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: In April, the average maximum UV index of 2 translate into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
FAQ
What is the temperature in April in Boulder?
What is the average humidity in April in Boulder?
How much does it rain in Boulder in April?
How much does it snow in Boulder in April?
What is the average length of the day in April in Boulder?
When is the sunrise / sunset in April in Boulder?
How many hours of sunshine does Boulder have in April?
How high is the UV index in April in Boulder?
Average temperature in April
Boulder, MT
- Average high temperature in April: 46.4°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 (27°F).
- Average low temperature in April: 27°F
The month with the highest average low temperature is August (48.6°F).
The coldest month (with the lowest average low temperature) is December (12.6°F).
Average pressure in April
Boulder, MT
- Average pressure in April: 29.98"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
Boulder, MT
- Average wind speed in April: 6.4mph
The windiest months (with the highest average wind speed) are January and November (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in April
Boulder, MT
- Average humidity in April: 72%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (46%).
Average rainfall in April
Boulder, MT
- Average rainfall in April: 2.01"
The wettest month (with the highest rainfall) is June (2.68").
The driest month (with the least rainfall) is December (0.79").
Average rainfall days in April
Boulder, MT
- Average rainfall days in April: 14.8 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in April
Boulder, MT
- Average snowfall in April: 7.8"
The month with the highest snowfall is February (9.72").
The months with the least snowfall are July and August (0").
Average snowfall days in April
Boulder, MT
- Average snowfall days in April: 12.3 days
The month with the highest number of snowfall days is February (18 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in April /
Average sunshine in April
Boulder, MT
- Average daylight in April: 13h and 36min
The month with the longest days is June (Average daylight: 15h and 43min).
The month with the shortest days is December (Average daylight: 8h and 41min).
- Average sunshine in April: 9h and 6min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).
Average sunshine days in April
Boulder, MT
- Average sunshine days in April: 8.9 days
The month with the most sunshine days is September (17.9 days).
The month with the least sunshine days is February (8.5 days).
Average UV index in April
Boulder, MT
- Average UV index in April: 2
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in April
Boulder, MT
- Average cloud cover in April: 42
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in April
Boulder, MT
- Average visibility in April: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Weather forecast for your location
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