April weather forecastGreen River, WY
April
Weather in April
April brings a pronounced change in Green River's weather with a transition from the raw, cold winter to warmer and rejuvenating spring weather. As the harsh winter subsides, temperatures climb significantly high to 48.7°F (9.3°C) and low to 31.5°F (-0.3°C) compared to March. With the retreat of snow, rainfall takes over as the primary form of precipitation at 1.42in, marking a significantly wetter period than the preceding months. This is a month when the landscape begins to regenerate, featuring longer days and a considerable surge in daylight hours. Green River's weather in April signals the definitive arrival of spring, characterized by warmer temperatures and increased rainfall.Temperature
Green River sees an increase in average high-temperatures during April, moving from an icy 39.7°F (4.3°C) in March to a chilly 48.7°F (9.3°C). Green River, during April, witnesses an average low-temperature of 31.5°F (-0.3°C).Humidity
In Green River, the average relative humidity in April is 59%.Rainfall
In April, the rain falls for 11.4 days. Throughout April, 1.42" (36mm) of precipitation is accumulated. In Green River, during the entire year, the rain falls for 93.5 days and collects up to 10.31" (262mm) of precipitation.Snowfall
January through June, September through December are months with snowfall. In Green River, in April, snow falls for 7.8 days, with typically accumulated 4.49" (114mm) of snow. Throughout the year, there are 75.5 snowfall days, and 30.16" (766mm) of snow is accumulated.Daylight
In April, the average length of the day is 13h and 22min.On the first day of the month, sunrise is at 6:59 am and sunset at 7:43 pm. On the last day of April, sunrise is at 6:14 am and sunset at 8:15 pm MDT.
Sunshine
The average sunshine in April is 10.1h.UV index
The months with the lowest UV index are January through April, October through December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 2 in April interprets into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Enhance your sun protection with tightly woven, yet airy clothing. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Green River, WY
- Average high temperature in April: 48.7°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is December (25.7°F).
- Average low temperature in April: 31.5°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in April
Green River, WY
- Average pressure in April: 29.93"Hg
The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in April
Green River, WY
- Average wind speed in April: 12.2mph
The windiest month (with the highest average wind speed) is April (12.2mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).
Average humidity in April
Green River, WY
- Average humidity in April: 59%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are July and August (31%).
Average rainfall in April
Green River, WY
- Average rainfall in April: 1.42"
The wettest month (with the highest rainfall) is May (1.5").
The driest month (with the least rainfall) is July (0.47").
Average rainfall days in April
Green River, WY
- Average rainfall days in April: 11.4 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is December (4.7 days).
Average snowfall in April
Green River, WY
- Average snowfall in April: 4.49"
The month with the highest snowfall is March (6.14").
The months with the least snowfall are July and August (0").
Average snowfall days in April
Green River, WY
- Average snowfall days in April: 7.8 days
The month with the highest number of snowfall days is December (13.5 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in April /
Average sunshine in April
Green River, WY
- Average daylight in April: 13h and 24min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in April: 10h and 6min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 54min).
Average sunshine days in April
Green River, WY
- Average sunshine days in April: 11.5 days
The month with the most sunshine days is September (19.8 days).
The month with the least sunshine days is April (11.5 days).
Average UV index in April
Green River, WY
- Average UV index in April: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in April
Green River, WY
- Average cloud cover in April: 32
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in April
Green River, WY
- Average visibility in April: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
