April weather forecastKirby, MT
April
Weather in April
April in Kirby, Montana, is a fresh spring month, with an average temperature ranging between max 53.1°F (11.7°C) and min 34.2°F (1.2°C).Temperature
As March gives way to April, the average high-temperature displays a slight ascent, adjusting from a frosty 45°F (7.2°C) to a fresh 53.1°F (11.7°C). In April, Kirby reports a consistent average low-temperature of 34.2°F (1.2°C) during the nights.Humidity
The average relative humidity in April is 63%.Rainfall
In Kirby, in April, during 15.3 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. In Kirby, during the entire year, the rain falls for 127.6 days and collects up to 14.25" (362mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. In Kirby, in April, snow falls for 6.3 days, with typically accumulated 5.08" (129mm) of snow. Throughout the year, there are 65.3 snowfall days, and 28.82" (732mm) of snow is accumulated.Daylight
The average length of the day in April is 13h and 33min.On the first day of the month, sunrise is at 6:46 am and sunset at 7:36 pm. On the last day of April, sunrise is at 5:56 am and sunset at 8:13 pm MDT.
Sunshine
The average sunshine in April is 9.9h.UV index
The average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The average daily UV index of 3 in April transforms into the following instructions:
Undertake precautions - It is suggested to shield oneself from sunburn. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. 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
Average temperature in April
Kirby, MT
- Average high temperature in April: 53.1°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is December (31.1°F).
- Average low temperature in April: 34.2°F
The month with the highest average low temperature is July (61.5°F).
The coldest months (with the lowest average low temperature) are January and February (16.2°F).
Average pressure in April
Kirby, MT
- Average pressure in April: 29.92"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
Kirby, MT
- Average wind speed in April: 9.1mph
The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest months (with the lowest average wind speed) are July and December (6.8mph).
Average humidity in April
Kirby, MT
- Average humidity in April: 63%
The months with the highest relative humidity are January and February (79%).
The month with the lowest relative humidity is August (40%).
Average rainfall in April
Kirby, MT
- Average rainfall in April: 2.01"
The wettest month (with the highest rainfall) is May (2.64").
The driest month (with the least rainfall) is December (0.67").
Average rainfall days in April
Kirby, MT
- Average rainfall days in April: 15.3 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in April
Kirby, MT
- Average snowfall in April: 5.08"
The month with the highest snowfall is February (5.2").
The months with the least snowfall are June, July and August (0").
Average snowfall days in April
Kirby, MT
- Average snowfall days in April: 6.3 days
The month with the highest number of snowfall days is February (14.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in April /
Average sunshine in April
Kirby, 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 54min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 42min).
Average sunshine days in April
Kirby, MT
- Average sunshine days in April: 10.3 days
The month with the most sunshine days is September (18.2 days).
The month with the least sunshine days is May (9.6 days).
Average UV index in April
Kirby, 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
Kirby, MT
- Average cloud cover in April: 36
The month with the most cloud cover is February (Cloud cover 41).
The months with the least cloud cover are July and August (Cloud cover 14).
Average visibility in April
Kirby, 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).





