April weather forecastAlder, MT
April
Weather in April
April in Alder, Montana, is a frosty spring month, with temperature in the range of an average low of 27.7°F (-2.4°C) and an average high of 46.4°F (8°C).Temperature
April's arrival is noted with a slight increase in the average high-temperature, moving from a wintry 38.1°F (3.4°C) in March to a chilly 46.4°F (8°C). Alder, during the nights of April, experiences an average temperature drop to a subzero cold 27.7°F (-2.4°C).Humidity
In April, the average relative humidity in Alder is 68%.Rainfall
In Alder, in April, during 18.6 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. Throughout the year, in Alder, there are 158 rainfall days, and 12.2" (310mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. April is the last month it regularly snows. During 1.2 snowfall days, in April, Alder aggregates 0.31" (8mm) of snow. In Alder, 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 Alder is 13h and 33min.On the first day of the month, sunrise is at 7:07 am and sunset at 7:57 pm. On the last day of April, sunrise is at 6:16 am and sunset at 8:34 pm MDT.
Sunshine
In Alder, 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 threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A daily high UV index of 2 in April leads to these guidelines:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Alder, 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
Alder, 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
Alder, 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
Alder, 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
Alder, 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
Alder, 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
Alder, 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
Alder, 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
Alder, MT
- Average daylight in April: 13h and 30min
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 48min
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
Alder, 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
Alder, 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
Alder, 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
Alder, 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).
