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 an increase in the average high-temperature, progressing from an icy 40.5°F (4.7°C) in March to a cool 54.1°F (12.3°C). Herreid, in April, experiences an average temperature of 36.9°F (2.7°C) at night.Humidity
In April, the average relative humidity in Herreid, South Dakota, is 64%.Rainfall
In Herreid, South Dakota, in April, it is raining for 10.4 days, with typically 1.57" (40mm) of accumulated precipitation. Throughout the year, in Herreid, there are 89.4 rainfall days, and 15.39" (391mm) of precipitation is accumulated.Snowfall
Months with snowfall in Herreid are January through May, October through December. In Herreid, during April, snow falls for 3.6 days and regularly aggregates up to 2.8" (71mm) of snow. In Herreid, South Dakota, during the entire year, snow falls for 49.4 days and aggregates up to 19.09" (485mm) of snow.Daylight
The average length of the day in April in Herreid is 13h and 35min.On the first day of April, sunrise is at 7:18 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 8:47 pm CDT.
Sunshine
In Herreid, the average sunshine in April is 7.8h.UV index
The average daily maximum UV index in April in Herreid is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.Note: A typical high UV index of 3 in April suggests the following recommendations:
Make use of precautions - It is urged to ward off sun damage. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Frequently asked questions
What is the average April temperature in Herreid?
What is the average humidity in April in Herreid?
How many days does it rain in April in Herreid?
How much does it snow in Herreid in April?
How many hours of daylight does Herreid have in April?
When are sunrise and sunset in April in Herreid?
How long on average sun shines in April in Herreid?
What is the UV index reading in April in Herreid?
Average temperature in April
Herreid, SD
- Average high temperature in April: 54.1°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (23°F).
- Average low temperature in April: 36.9°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (9°F).
Average pressure in April
Herreid, SD
- Average pressure in April: 29.95"Hg
The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in April
Herreid, SD
- Average wind speed in April: 11.5mph
The windiest month (with the highest average wind speed) is April (11.5mph).
The calmest month (with the lowest average wind speed) is February (9.4mph).
Average humidity in April
Herreid, SD
- Average humidity in April: 64%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (52%).
Average rainfall in April
Herreid, SD
- Average rainfall in April: 1.57"
The wettest month (with the highest rainfall) is June (2.32").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in April
Herreid, SD
- Average rainfall days in April: 10.4 days
The month with the highest number of rainy days is June (13.8 days).
The month with the least rainy days is February (1.3 days).
Average snowfall in April
Herreid, SD
- Average snowfall in April: 2.8"
The month with the highest snowfall is February (3.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Herreid, SD
- Average snowfall days in April: 3.6 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Herreid, SD
- Average daylight in April: 13h and 4min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in April: 7h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in April
Herreid, SD
- Average sunshine days in April: 14.6 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (13.6 days).
Average UV index in April
Herreid, SD
- 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 and December (UV index 1).
Average cloud cover in April
Herreid, SD
- Average cloud cover in April: 44
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 21).
Average visibility in April
Herreid, SD
- Average visibility in April: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Herreid, South Dakota, USA
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