April weather forecastMammoth, WY
April
Weather in April
April in Mammoth, Wyoming, is a wintry spring month, with temperature in the range of an average low of 19.6°F (-6.9°C) and an average high of 37.2°F (2.9°C).Temperature
Mammoth experiences a minor temperature shift with the start of April, with average high-temperatures moving from a subzero cold 30°F (-1.1°C) in March to a wintry 37.2°F (2.9°C). Mammoth's average low-temperature in the month of April is recorded at a freezing cold 19.6°F (-6.9°C).Humidity
The average relative humidity in April is 88%.Rainfall
In April, the rain falls for 9.8 days. Throughout April, 2.6" (66mm) of precipitation is accumulated. Throughout the year, in Mammoth, there are 109.2 rainfall days, and 23.15" (588mm) of precipitation is accumulated.Snowfall
January through July, September through December are months with snowfall. In Mammoth, during April, snow falls for 19.9 days and regularly aggregates up to 17.05" (433mm) of snow. In Mammoth, during the entire year, snow falls for 159.3 days and aggregates up to 120.47" (3060mm) of snow.Daylight
In Mammoth, Wyoming, the average length of the day in April is 13h and 32min.On the first day of the month, sunrise is at 7:01 am and sunset at 7:51 pm. On the last day of April, in Mammoth, sunrise is at 6:12 am and sunset at 8:27 pm MDT.
Sunshine
The average sunshine in April is 7.2h.UV index
January through April, October through December, with an average maximum UV index of 1, are months with the lowest UV index in Mammoth. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 1 in April interprets into the following recommendations:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Mammoth, WY
- Average high temperature in April: 37.2°F
The warmest month (with the highest average high temperature) is July (72.9°F).
The month with the lowest average high temperature is December (20.1°F).
- Average low temperature in April: 19.6°F
The month with the highest average low temperature is August (43.7°F).
The coldest month (with the lowest average low temperature) is December (4.8°F).
Average pressure in April
Mammoth, WY
- Average pressure in April: 29.97"Hg
The month with the highest atmospheric pressure is January (30.24"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in April
Mammoth, WY
- Average wind speed in April: 6.2mph
The windiest month (with the highest average wind speed) is June (6.8mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in April
Mammoth, WY
- Average humidity in April: 88%
The month with the highest relative humidity is February (95%).
The month with the lowest relative humidity is August (50%).
Average rainfall in April
Mammoth, WY
- Average rainfall in April: 2.6"
The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is July (0.91").
Average rainfall days in April
Mammoth, WY
- Average rainfall days in April: 9.8 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (2.2 days).
Average snowfall in April
Mammoth, WY
- Average snowfall in April: 17.05"
The month with the highest snowfall is February (17.83").
The month with the least snowfall is August (0").
Average snowfall days in April
Mammoth, WY
- Average snowfall days in April: 19.9 days
The month with the highest number of snowfall days is March (24.4 days).
The months with the least snowfall days are July and August (0.2 days).
Average daylight in April /
Average sunshine in April
Mammoth, WY
- 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 12min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 18min).
Average sunshine days in April
Mammoth, WY
- Average sunshine days in April: 5.5 days
The months with the most sunshine days are July and September (14.7 days).
The month with the least sunshine days is February (5.3 days).
Average UV index in April
Mammoth, WY
- Average UV index in April: 1
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 1).
Average cloud cover in April
Mammoth, WY
- Average cloud cover in April: 54
The month with the most cloud cover is February (Cloud cover 76).
The month with the least cloud cover is July (Cloud cover 16).
Average visibility in April
Mammoth, WY
- Average visibility in April: 4mi
The months with the highest visibility are June, July, August and September (6mi).
The months with the lowest visibility are January, February, March and December (3mi).
