April weather forecastLander, WY

April
Weather in April
April's arrival in Lander ushers in more noticeable spring weather. The city experiences a significant reduction in snowfall, which gives way to increased rainfall. Compared to March, April brings longer daylight, averaging 13.4 hours and an increase in relative humidity. The highlight of April's weather lies in the noticeable temperature rise, with lows of 30°F (-1.1°C) and highs nearing 47.8°F (8.8°C), while rainfall reaches its peak at 1.81" (46mm). Looking ahead to May, anticipate warmer and drier conditions.Temperature
In Lander, stepping into April brings a gentle temperature nudge, moving slightly up from March's icy 39.7°F (4.3°C) to a chilly 47.8°F (8.8°C). During April, Lander observes a consistent average nighttime temperature of 30°F (-1.1°C).Humidity
In April, the average relative humidity is 62%.Rainfall
The month with the most rainfall is April, when the rain falls for 11.5 days and typically aggregates up to 1.81" (46mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. April is the month with the most snowfall. Snow falls for 7.3 days and accumulates 8.15" (207mm) of snow.Daylight
The average length of the day in April in Lander is 13h and 26min.On the first day of the month, sunrise is at 6:55 am and sunset at 7:41 pm. On the last day of April, sunrise is at 6:09 am and sunset at 8:14 pm MDT.
Sunshine
In April, the average sunshine is 10.5h.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 reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In April, the UV index of 2 transforms into the following advice:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. 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
Lander, WY
- Average high temperature in April: 47.8°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is December (28.4°F).
- Average low temperature in April: 30°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is December (13.1°F).
Average pressure in April
Lander, WY
- Average pressure in April: 29.93"Hg
The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in April
Lander, WY
- Average wind speed in April: 7.6mph
The windiest month (with the highest average wind speed) is March (7.7mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in April
Lander, WY
- Average humidity in April: 62%
The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is August (34%).
Average rainfall in April
Lander, WY
- Average rainfall in April: 1.81"
The wettest month (with the highest rainfall) is April (1.81").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in April
Lander, WY
- Average rainfall days in April: 11.5 days
The month with the highest number of rainy days is May (12.8 days).
The month with the least rainy days is November (4.8 days).
Average snowfall in April
Lander, WY
- Average snowfall in April: 8.15"
The month with the highest snowfall is April (8.15").
The months with the least snowfall are June, July and August (0").
Average snowfall days in April
Lander, WY
- Average snowfall days in April: 7.3 days
The month with the highest number of snowfall days is February (10.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in April /
Average sunshine in April
Lander, WY
- Average daylight in April: 13h and 24min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in April: 10h and 30min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January and February (Average sunshine: 6h and 54min).
Average sunshine days in April
Lander, WY
- Average sunshine days in April: 12.3 days
The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is April (12.3 days).
Average UV index in April
Lander, 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
Lander, WY
- Average cloud cover in April: 28
The months with the most cloud cover are February and April (Cloud cover 28).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in April
Lander, 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).





