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 brings a soft temperature shift, with the average high-temperature nudging from a wintry 42.6°F (5.9°C) in March to a fresh 51.1°F (10.6°C). An average nighttime temperature of 33.1°F (0.6°C) is observed during April.Humidity
In Fort Smith, the average relative humidity in April is 65%.Rainfall
In Fort Smith, Montana, in April, during 16.4 rainfall days, 1.65" (42mm) of precipitation is typically accumulated. Throughout the year, in Fort Smith, there are 128.8 rainfall days, and 12.64" (321mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. In Fort Smith, during April, snow falls for 5.3 days and regularly aggregates up to 4.41" (112mm) of snow. Throughout the year, in Fort Smith, there are 66 snowfall days, and 33.07" (840mm) of snow is accumulated.Daylight
The average length of the day in April in Fort Smith is 13h and 33min.On the first day of April, sunrise is at 6:50 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 8:17 pm MDT.
Sunshine
The average sunshine in April is 9.5h.UV index
In Fort Smith, the average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 3 in April converts into the following recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are April temperatures in Fort Smith?
What is the average humidity in April in Fort Smith?
How many days does it rain in April in Fort Smith?
How much does it snow in Fort Smith in April?
What is the average length of the day in April in Fort Smith?
When are sunrise and sunset in April in Fort Smith?
How long on average sun shines in April in Fort Smith?
How high is the UV index in April in Fort Smith?
Average temperature in April
Fort Smith, MT
- Average high temperature in April: 51.1°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is December (29.7°F).
- Average low temperature in April: 33.1°F
The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is February (16.5°F).
Average pressure in April
Fort Smith, MT
- Average pressure in April: 29.93"Hg
The months with the highest atmospheric pressure are January and December (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in April
Fort Smith, MT
- Average wind speed in April: 8.3mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in April
Fort Smith, MT
- Average humidity in April: 65%
The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is August (41%).
Average rainfall in April
Fort Smith, MT
- Average rainfall in April: 1.65"
The wettest month (with the highest rainfall) is May (2.01").
The driest month (with the least rainfall) is December (0.59").
Average rainfall days in April
Fort Smith, MT
- Average rainfall days in April: 16.4 days
The month with the highest number of rainy days is May (18 days).
The months with the least rainy days are January and December (6.3 days).
Average snowfall in April
Fort Smith, MT
- Average snowfall in April: 4.41"
The month with the highest snowfall is February (6.85").
The months with the least snowfall are June, July and August (0").
Average snowfall days in April
Fort Smith, MT
- Average snowfall days in April: 5.3 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
Fort Smith, 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 3min
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 42min).
Average sunshine days in April
Fort Smith, MT
- Average sunshine days in April: 9.2 days
The month with the most sunshine days is October (16.7 days).
The month with the least sunshine days is May (8.7 days).
Average UV index in April
Fort Smith, MT
- Average UV index in April: 3
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in April
Fort Smith, 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 14).
Average visibility in April
Fort Smith, 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).
Fort Smith, Montana, USA
Weather forecast for your location
2. Allow the app to use your location