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
April brings a temperature increase, with average high-temperatures moving from March's frosty 44.4°F (6.9°C) to a fresh 54.1°F (12.3°C). Throughout April, Greybull encounters an average temperature drop to an icy 36.7°F (2.6°C).Humidity
The average relative humidity in April is 48%.Rainfall
In Greybull, Wyoming, in April, during 12 rainfall days, 0.63" (16mm) of precipitation is typically accumulated. In Greybull, during the entire year, the rain falls for 103.2 days and collects up to 5.71" (145mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Greybull, in April, during 3.1 snowfall days, 1.22" (31mm) of snow is typically accumulated. In Greybull, during the entire year, snow falls for 41.4 days and aggregates up to 9.41" (239mm) of snow.Daylight
The average length of the day in April in Greybull is 13h and 31min.On the first day of the month, sunrise is at 6:51 am and sunset at 7:40 pm. On the last day of April, sunrise is at 6:02 am and sunset at 8:15 pm MDT.
Sunshine
The average sunshine in April in Greybull is 11.1h.UV index
In April, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: In April, the average maximum UV index of 3 translates into the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are April temperatures in Greybull?
What is the average humidity in April in Greybull?
How much does it rain in Greybull in April?
How many days does it snow in April in Greybull?
What is the average length of the day in April in Greybull?
What time are sunrise and sunset in April in Greybull?
How many hours of sunshine does Greybull have in April?
What is the UV index reading in April in Greybull?
Average temperature in April
Greybull, WY
- Average high temperature in April: 54.1°F
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is December (28.8°F).
- Average low temperature in April: 36.7°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (13.8°F).
Average pressure in April
Greybull, WY
- Average pressure in April: 29.93"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in April
Greybull, WY
- Average wind speed in April: 8.3mph
The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest months (with the lowest average wind speed) are January and August (6mph).
Average humidity in April
Greybull, WY
- Average humidity in April: 48%
The month with the highest relative humidity is January (78%).
The months with the lowest relative humidity are July and August (33%).
Average rainfall in April
Greybull, WY
- Average rainfall in April: 0.63"
The wettest month (with the highest rainfall) is May (0.87").
The driest month (with the least rainfall) is December (0.2").
Average rainfall days in April
Greybull, WY
- Average rainfall days in April: 12 days
The month with the highest number of rainy days is May (12.6 days).
The month with the least rainy days is December (6.5 days).
Average snowfall in April
Greybull, WY
- Average snowfall in April: 1.22"
The month with the highest snowfall is February (2.52").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Greybull, WY
- Average snowfall days in April: 3.1 days
The month with the highest number of snowfall days is February (9.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in April /
Average sunshine in April
Greybull, WY
- Average daylight in April: 13h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in April: 11h and 1min
The months with the most sunshine are June, July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 42min).
Average sunshine days in April
Greybull, WY
- Average sunshine days in April: 12.5 days
The month with the most sunshine days is December (20.9 days).
The months with the least sunshine days are April and June (12.5 days).
Average UV index in April
Greybull, WY
- Average UV index in April: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in April
Greybull, WY
- Average cloud cover in April: 26
The month with the most cloud cover is February (Cloud cover 28).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in April
Greybull, WY
- 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).
Greybull, Wyoming, USA
Weather forecast for your location
2. Allow the app to use your location