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
Entering April, Decker notices a subtle temperature elevation, with the average high-temperature advancing from March's chilly 45°F (7.2°C) to a cool 53.1°F (11.7°C). During April, the nighttime temperature in Decker, Montana, averages of 34.2°F (1.2°C).Humidity
In April, the average relative humidity in Decker is 63%.Rainfall
In Decker, in April, during 15.3 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. Throughout the year, in Decker, Montana, there are 127.6 rainfall days, and 14.25" (362mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall in Decker. In Decker, in April, snow falls for 6.3 days, with typically accumulated 5.08" (129mm) of snow. In Decker, during the entire year, snow falls for 65.3 days and aggregates up to 28.82" (732mm) of snow.Daylight
In Decker, the average length of the day in April is 13h and 32min.On the first day of April in Decker, sunrise is at 6:46 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 8:12 pm MDT.
Sunshine
In Decker, the average sunshine in April is 9.9h.UV index
In Decker, the average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 3 in April translates into this advice:
Act with care - The suggestion to avoid sunburn is emphasized. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
What are April temperatures in Decker?
What is the average humidity in April in Decker?
How much does it rain in Decker in April?
How much does it snow in Decker in April?
What is the average length of the day in April in Decker?
When is the sunrise / sunset in April in Decker?
How many hours of sunshine does Decker have in April?
What is the UV index reading in April in Decker?
Average temperature in April
Decker, 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
Decker, 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
Decker, 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
Decker, 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
Decker, 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
Decker, 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
Decker, 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
Decker, 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
Decker, MT
- Average daylight in April: 13h and 3min
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 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
Decker, 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
Decker, 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
Decker, 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
Decker, 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).
Decker, Montana, USA
Weather forecast for your location
2. Allow the app to use your location
