April weather forecastCuster, SD
April
Weather in April
April in Custer comes with the promise of spring, markedly distinct from its March predecessor. As snow melts away, the soil absorbs the moisture, leading to the sprouting of new vegetation. It is also the time when temperatures make a noticeable leap, often reaching 50.9°F (10.5°C), ensuring the complete disappearance of snow. The increase in daylight hours up to 13.5 adds to the allure of Custer in April. A perfect time to witness the transformation of the landscape into blooms of green and colorful flowers.Temperature
April's onset in Custer brings a subtle temperature rise, moving from a frosty 43.9°F (6.6°C) in March to a cool 50.9°F (10.5°C). Throughout the month of April, Custer reports a steady low-temperature average of 32.5°F (0.3°C).Humidity
In Custer, the average relative humidity in April is 67%.Rainfall
In April, in Custer, the rain falls for 13.3 days. Throughout April, 2.32" (59mm) of precipitation is accumulated. In Custer, during the entire year, the rain falls for 135.4 days and collects up to 20.39" (518mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. The month with the most snowfall is April, when snow falls for 8.8 days and typically aggregates up to 7.24" (184mm) of snow.Daylight
In April, the average length of the day in Custer is 13h and 28min.On the first day of April, sunrise is at 6:34 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 7:56 pm MDT.
Sunshine
In April, the average sunshine is 9.5h.UV index
The average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum high daily UV index of 3 during April translates into the following directions:
Exercise prevention - Precautions against solar damage are endorsed. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Custer, SD
- Average high temperature in April: 50.9°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 (29.8°F).
- Average low temperature in April: 32.5°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is February (16.2°F).
Average pressure in April
Custer, SD
- Average pressure in April: 29.92"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in April
Custer, SD
- Average wind speed in April: 9.5mph
The windiest month (with the highest average wind speed) is April (9.5mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in April
Custer, SD
- Average humidity in April: 67%
The months with the highest relative humidity are January and February (77%).
The months with the lowest relative humidity are August and September (52%).
Average rainfall in April
Custer, SD
- Average rainfall in April: 2.32"
The wettest month (with the highest rainfall) is June (3.19").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in April
Custer, SD
- Average rainfall days in April: 13.3 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is November (4.5 days).
Average snowfall in April
Custer, SD
- Average snowfall in April: 7.24"
The month with the highest snowfall is April (7.24").
The months with the least snowfall are June, July and August (0").
Average snowfall days in April
Custer, SD
- Average snowfall days in April: 8.8 days
The month with the highest number of snowfall days is February (12.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in April /
Average sunshine in April
Custer, SD
- Average daylight in April: 13h and 30min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in April: 9h and 30min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 6h and 0min).
Average sunshine days in April
Custer, SD
- Average sunshine days in April: 9.8 days
The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is May (7.8 days).
Average UV index in April
Custer, SD
- Average UV index in April: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in April
Custer, SD
- Average cloud cover in April: 38
The month with the most cloud cover is April (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in April
Custer, SD
- 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).
