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
The arrival of April witnesses a small shift in the average high-temperature, moving from a wintry 38.1°F (3.4°C) in March to a frosty 46.4°F (8°C). During April, Mammoth sees a mean low-temperature of 27.7°F (-2.4°C).Humidity
The average relative humidity in April is 68%.Rainfall
In Mammoth, during April, the rain falls for 18.6 days and regularly aggregates up to 1.57" (40mm) of precipitation. In Mammoth, Montana, during the entire year, the rain falls for 158 days and collects up to 12.2" (310mm) of precipitation.Snowfall
January through April, October through December are months with snowfall in Mammoth. April is the last month it regularly snows in Mammoth, Montana. During 1.2 snowfall days, in April, Mammoth aggregates 0.31" (8mm) of snow. In Mammoth, during the entire year, snow falls for 20.8 days and aggregates up to 5.12" (130mm) of snow.Daylight
In April, the average length of the day in Mammoth is 13h and 34min.On the first day of the month, sunrise is at 7:06 am and sunset at 7:56 pm. On the last day of April, in Mammoth, sunrise is at 6:15 am and sunset at 8:34 pm MDT.
Sunshine
In Mammoth, Montana, the average sunshine in April is 9.8h.UV index
January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.Note: In April, a daily maximum UV index of 2 leads to the following instructions:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Frequently asked questions
What is the usual temperature for Mammoth in April?
What is the average humidity in April in Mammoth?
How many days does it rain in April in Mammoth?
What is the last month it snows in Mammoth?
How many hours of daylight does Mammoth have in April?
What time are sunrise and sunset in April in Mammoth?
How long on average sun shines in April in Mammoth?
What is the month with the lowest UV index in Mammoth?
How high is the UV index in April in Mammoth?
Average temperature in April
Mammoth, MT
- Average high temperature in April: 46.4°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is December (26.4°F).
- Average low temperature in April: 27.7°F
The month with the highest average low temperature is July (47.7°F).
The coldest month (with the lowest average low temperature) is December (11.3°F).
Average pressure in April
Mammoth, MT
- Average pressure in April: 29.98"Hg
The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in April
Mammoth, MT
- Average wind speed in April: 6.1mph
The windiest month (with the highest average wind speed) is November (6.3mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in April
Mammoth, MT
- Average humidity in April: 68%
The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are July and August (46%).
Average rainfall in April
Mammoth, MT
- Average rainfall in April: 1.57"
The wettest month (with the highest rainfall) is May (1.85").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in April
Mammoth, MT
- Average rainfall days in April: 18.6 days
The month with the highest number of rainy days is April (18.6 days).
The month with the least rainy days is August (8.6 days).
Average snowfall in April
Mammoth, MT
- Average snowfall in April: 0.31"
The month with the highest snowfall is February (1.81").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Mammoth, MT
- Average snowfall days in April: 1.2 days
The month with the highest number of snowfall days is February (6.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Mammoth, MT
- Average daylight in April: 13h and 4min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in April: 9h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in April
Mammoth, MT
- Average sunshine days in April: 7.8 days
The month with the most sunshine days is July (17.8 days).
The month with the least sunshine days is April (7.8 days).
Average UV index in April
Mammoth, MT
- Average UV index in April: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in April
Mammoth, MT
- Average cloud cover in April: 35
The month with the most cloud cover is February (Cloud cover 42).
The months with the least cloud cover are July and August (Cloud cover 14).
Average visibility in April
Mammoth, 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 months with the lowest visibility are January, February and December (5mi).
Mammoth, Montana, USA
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