April weather forecastPompeys Pillar, MT
April
Weather in April
April in Pompeys Pillar, Montana, is a fresh spring month, with an average temperature fluctuating between 36.9°F (2.7°C) and 55°F (12.8°C).Temperature
The arrival of April signals an increase in the average high-temperature, moving from a frosty 46°F (7.8°C) in March to a fresh 55°F (12.8°C). In April, the nighttime temperature lowers to an average of 36.9°F (2.7°C).Humidity
The average relative humidity in April is 59%.Rainfall
In Pompeys Pillar, during April, the rain falls for 13 days and regularly aggregates up to 1.65" (42mm) of precipitation. In Pompeys Pillar, during the entire year, the rain falls for 103 days and collects up to 11.97" (304mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. In Pompeys Pillar, in April, snow falls for 4.6 days, with typically accumulated 3.07" (78mm) of snow. In Pompeys Pillar, during the entire year, snow falls for 56.7 days and aggregates up to 25.16" (639mm) of snow.Daylight
In April, the average length of the day is 13h and 35min.On the first day of April, sunrise is at 6:50 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 8:19 pm MDT.
Sunshine
In April, the average sunshine in Pompeys Pillar is 9.5h.UV index
The average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: In April, the maximum UV index of 3 transforms into these recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Pompeys Pillar, MT
- Average high temperature in April: 55°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is December (31.3°F).
- Average low temperature in April: 36.9°F
The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure in April
Pompeys Pillar, MT
- Average pressure in April: 29.93"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in April
Pompeys Pillar, MT
- Average wind speed in April: 9.1mph
The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).
Average humidity in April
Pompeys Pillar, MT
- Average humidity in April: 59%
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is August (38%).
Average rainfall in April
Pompeys Pillar, MT
- Average rainfall in April: 1.65"
The wettest month (with the highest rainfall) is May (1.81").
The driest month (with the least rainfall) is August (0.63").
Average rainfall days in April
Pompeys Pillar, MT
- Average rainfall days in April: 13 days
The month with the highest number of rainy days is May (13.6 days).
The month with the least rainy days is December (5.9 days).
Average snowfall in April
Pompeys Pillar, MT
- Average snowfall in April: 3.07"
The month with the highest snowfall is February (5.43").
The months with the least snowfall are June, July and August (0").
Average snowfall days in April
Pompeys Pillar, MT
- Average snowfall days in April: 4.6 days
The month with the highest number of snowfall days is February (12.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in April /
Average sunshine in April
Pompeys Pillar, MT
- Average daylight in April: 13h and 36min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in April: 9h and 30min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 36min).
Average sunshine days in April
Pompeys Pillar, MT
- Average sunshine days in April: 13.4 days
The month with the most sunshine days is September (21.5 days).
The month with the least sunshine days is February (13.3 days).
Average UV index in April
Pompeys Pillar, MT
- Average UV index in April: 3
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in April
Pompeys Pillar, MT
- Average cloud cover in April: 39
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 13).
Average visibility in April
Pompeys Pillar, 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).
