April weather forecastSphinx, MT
April
Weather in April
April, like March, in Sphinx, Montana, is an icy spring month, with an average temperature fluctuating between 40.1°F (4.5°C) and 22.1°F (-5.5°C).Temperature
April witnesses a minor rise in the average high-temperature, transitioning from an icy 32.9°F (0.5°C) in March to a still cold 40.1°F (4.5°C). Sphinx, during the month of April, experiences an average low-temperature of 22.1°F (-5.5°C).Humidity
In April, the average relative humidity is 83%.Rainfall
The wettest months are April and May, with an average 2.91" (74mm) of rainfall.Snowfall
Months with snowfall are January through December. April is the month with the most snowfall. Snow falls for 20.5 days and accumulates 19.88" (505mm) of snow.Daylight
In Sphinx, the average length of the day in April is 13h and 32min.On the first day of April, sunrise is at 7:02 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 6:12 am and sunset at 8:28 pm MDT.
Sunshine
The average sunshine in April is 7.9h.UV index
The average daily maximum UV index in April is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 2 during April translates into the following recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Sphinx, MT
- Average high temperature in April: 40.1°F
The warmest month (with the highest average high temperature) is July (74.8°F).
The month with the lowest average high temperature is December (22.5°F).
- Average low temperature in April: 22.1°F
The month with the highest average low temperature is August (45.1°F).
The coldest month (with the lowest average low temperature) is December (7.9°F).
Average pressure in April
Sphinx, MT
- Average pressure in April: 29.97"Hg
The month with the highest atmospheric pressure is January (30.22"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
Sphinx, MT
- Average wind speed in April: 5.7mph
The windiest month (with the highest average wind speed) is January (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in April
Sphinx, MT
- Average humidity in April: 83%
The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is August (51%).
Average rainfall in April
Sphinx, MT
- Average rainfall in April: 2.91"
The wettest months (with the highest rainfall) are April and May (2.91").
The driest month (with the least rainfall) is July (1.18").
Average rainfall days in April
Sphinx, MT
- Average rainfall days in April: 9.6 days
The month with the highest number of rainy days is June (16.6 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in April
Sphinx, MT
- Average snowfall in April: 19.88"
The month with the highest snowfall is April (19.88").
The month with the least snowfall is August (0.08").
Average snowfall days in April
Sphinx, MT
- Average snowfall days in April: 20.5 days
The month with the highest number of snowfall days is March (21 days).
The month with the least snowfall days is August (0.3 days).
Average daylight in April /
Average sunshine in April
Sphinx, 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: 7h and 54min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in April
Sphinx, MT
- Average sunshine days in April: 6.6 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is May (5.7 days).
Average UV index in April
Sphinx, MT
- Average UV index in April: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in April
Sphinx, MT
- Average cloud cover in April: 50
The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is July (Cloud cover 17).
Average visibility in April
Sphinx, MT
- Average visibility in April: 4mi
The months with the highest visibility are June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April and December (4mi).
