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
With the transition into April, Sidney experiences an increase in average high-temperatures, moving up from a cold 39.7°F (4.3°C) in March to a fresh 52.5°F (11.4°C). Throughout April, the temperature falls to an average low of 36.1°F (2.3°C).Humidity
In April, the average relative humidity is 60%.Rainfall
In Sidney, in April, it is raining for 10.2 days, with typically 0.75" (19mm) of accumulated precipitation. Throughout the year, there are 85.7 rainfall days, and 8.5" (216mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Sidney, in April, snow falls for 4 days, with typically accumulated 0.94" (24mm) of snow. Throughout the year, there are 56.1 snowfall days, and 8.94" (227mm) of snow is accumulated.Daylight
The average length of the day in April is 13h and 41min.On the first day of the month, sunrise is at 6:33 am and sunset at 7:27 pm. On the last day of April, sunrise is at 5:39 am and sunset at 8:08 pm MDT.
Sunshine
The average sunshine in April is 8.8h.UV index
In April, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In April, the maximum UV index of 3 suggests these recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in April?
What is the average humidity in April?
How many days does it rain in April?
How much does it snow in Sidney in April?
What is the average length of the day in April?
What time are sunrise and sunset in April?
How many hours of sunshine does Sidney have in April?
What is the UV index reading in April?
Average temperature in April
Sidney, MT
- Average high temperature in April: 52.5°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (23.4°F).
- Average low temperature in April: 36.1°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in April
Sidney, MT
- Average pressure in April: 29.95"Hg
The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in April
Sidney, MT
- Average wind speed in April: 11.1mph
The windiest months (with the highest average wind speed) are April and October (11.1mph).
The calmest month (with the lowest average wind speed) is February (9.2mph).
Average humidity in April
Sidney, MT
- Average humidity in April: 60%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (45%).
Average rainfall in April
Sidney, MT
- Average rainfall in April: 0.75"
The wettest month (with the highest rainfall) is July (1.34").
The driest month (with the least rainfall) is January (0.24").
Average rainfall days in April
Sidney, MT
- Average rainfall days in April: 10.2 days
The month with the highest number of rainy days is June (11.4 days).
The months with the least rainy days are January and February (3.2 days).
Average snowfall in April
Sidney, MT
- Average snowfall in April: 0.94"
The month with the highest snowfall is February (1.77").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Sidney, MT
- Average snowfall days in April: 4 days
The month with the highest number of snowfall days is February (12 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Sidney, MT
- Average daylight in April: 13h and 4min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in April: 8h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in April
Sidney, MT
- Average sunshine days in April: 15.8 days
The month with the most sunshine days is September (20.7 days).
The month with the least sunshine days is April (15.8 days).
Average UV index in April
Sidney, 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 and February (UV index 1).
Average cloud cover in April
Sidney, MT
- Average cloud cover in April: 43
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 18).
Average visibility in April
Sidney, 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).
Sidney, Montana, USA
Weather forecast for your location
2. Allow the app to use your location