April weather forecastOpal, WY
April
Weather in April
April is a chilly spring month in Opal, Wyoming, with temperature in the range of an average low of 28.8°F (-1.8°C) and an average high of 46°F (7.8°C).Temperature
April's arrival brings a temperature shift, moving from a wintry 36.5°F (2.5°C) in March to a chilly 46°F (7.8°C). Nighttime temperature in Opal experiences an average drop to a subzero cold 28.8°F (-1.8°C) in April.Humidity
In April, the average relative humidity in Opal is 67%.Rainfall
In Opal, Wyoming, during April, the rain falls for 10.9 days and regularly aggregates up to 1.38" (35mm) of precipitation. In Opal, during the entire year, the rain falls for 96.8 days and collects up to 11.46" (291mm) of precipitation.Snowfall
January through June, September through December are months with snowfall. In Opal, in April, snow falls for 11.5 days, with typically accumulated 6.26" (159mm) of snow. Throughout the year, there are 88.9 snowfall days, and 38.86" (987mm) of snow is accumulated.Daylight
In Opal, the average length of the day in April is 13h and 23min.On the first day of April in Opal, sunrise is at 7:02 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 8:19 pm MDT.
Sunshine
The average sunshine in April in Opal is 9.9h.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 estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In April, the maximum UV index of 2 translates into these guidelines:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. 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
Average temperature in April
Opal, WY
- Average high temperature in April: 46°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is December (25.7°F).
- Average low temperature in April: 28.8°F
The month with the highest average low temperature is July (55°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in April
Opal, WY
- Average pressure in April: 29.94"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in April
Opal, WY
- Average wind speed in April: 9.8mph
The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in April
Opal, WY
- Average humidity in April: 67%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is August (35%).
Average rainfall in April
Opal, WY
- Average rainfall in April: 1.38"
The wettest month (with the highest rainfall) is May (2.01").
The driest month (with the least rainfall) is August (0.59").
Average rainfall days in April
Opal, WY
- Average rainfall days in April: 10.9 days
The month with the highest number of rainy days is May (13.3 days).
The month with the least rainy days is February (5 days).
Average snowfall in April
Opal, WY
- Average snowfall in April: 6.26"
The month with the highest snowfall is March (6.81").
The months with the least snowfall are July and August (0").
Average snowfall days in April
Opal, WY
- Average snowfall days in April: 11.5 days
The month with the highest number of snowfall days is February (15.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in April /
Average sunshine in April
Opal, WY
- Average daylight in April: 13h and 24min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in April: 9h and 54min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).
Average sunshine days in April
Opal, WY
- Average sunshine days in April: 9.7 days
The month with the most sunshine days is October (19.4 days).
The month with the least sunshine days is April (9.7 days).
Average UV index in April
Opal, 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
Opal, WY
- Average cloud cover in April: 33
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in April
Opal, WY
- Average visibility in April: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
