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 rise in the average high-temperature, transitioning from March's chilly 46.9°F (8.3°C) to a refreshing 57.9°F (14.4°C). An average low-temperature of 40.1°F (4.5°C) is anticipated throughout the nights during April.Humidity
In Irene, the average relative humidity in April is 68%.Rainfall
In Irene, in April, during 12.2 rainfall days, 2.4" (61mm) of precipitation is typically accumulated. In Irene, during the entire year, the rain falls for 117.9 days and collects up to 21.93" (557mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Irene, during April, snow falls for 2.4 days and regularly aggregates up to 2.13" (54mm) of snow. In Irene, South Dakota, during the entire year, snow falls for 37.4 days and aggregates up to 14.45" (367mm) of snow.Daylight
In Irene, the average length of the day in April is 13h and 26min.On the first day of the month, sunrise is at 7:09 am and sunset at 7:55 pm. On the last day of April, sunrise is at 6:22 am and sunset at 8:29 pm CDT.
Sunshine
In April, the average sunshine is 8h.UV index
The average daily maximum UV index in April is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: In April, a regular UV index of 4 translates into these guidelines:
Adopt protective measures - It is advised to guard against sun damage. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in April in Irene?
What is the average humidity in April in Irene?
How many days does it rain in April in Irene?
How many days does it snow in April in Irene?
What is the average length of the day in April in Irene?
What time are sunrise and sunset in April in Irene?
How long on average sun shines in April in Irene?
What is the UV index intensity in April in Irene?
Average temperature in April
Irene, SD
- Average high temperature in April: 57.9°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (26.8°F).
- Average low temperature in April: 40.1°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (12.9°F).
Average pressure in April
Irene, SD
- 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 (29.85"Hg).
Average wind speed in April
Irene, SD
- Average wind speed in April: 11.1mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.9mph).
Average humidity in April
Irene, SD
- Average humidity in April: 68%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (64%).
Average rainfall in April
Irene, SD
- Average rainfall in April: 2.4"
The wettest month (with the highest rainfall) is May (3.78").
The driest month (with the least rainfall) is February (0.59").
Average rainfall days in April
Irene, SD
- Average rainfall days in April: 12.2 days
The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in April
Irene, SD
- Average snowfall in April: 2.13"
The month with the highest snowfall is December (2.95").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Irene, SD
- Average snowfall days in April: 2.4 days
The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Irene, SD
- Average daylight in April: 13h and 2min
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: 8h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in April
Irene, SD
- Average sunshine days in April: 14.8 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (9.3 days).
Average UV index in April
Irene, SD
- Average UV index in April: 4
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in April
Irene, SD
- Average cloud cover in April: 43
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in April
Irene, 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).
Irene, South Dakota, USA
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