April weather forecastCastle Rock, MN
April
Weather in April
April is a fresh spring month in Castle Rock, Minnesota, with an average temperature varying between 52.9°F (11.6°C) and 37.2°F (2.9°C).Temperature
As Castle Rock, Minnesota, transitions into April, the average high-temperature shows a change, moving from a wintry 39.4°F (4.1°C) in March to a fresh 52.9°F (11.6°C). During April, the temperature is averaged to a low of 37.2°F (2.9°C) at night.Humidity
April and October, with an average relative humidity of 73%, are the least humid months in Castle Rock.Rainfall
In Castle Rock, during April, the rain falls for 13.6 days and regularly aggregates up to 2.36" (60mm) of precipitation. In Castle Rock, during the entire year, the rain falls for 126.4 days and collects up to 24.76" (629mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Castle Rock, during April, snow falls for 4.1 days and regularly aggregates up to 1.65" (42mm) of snow. Throughout the year, there are 55.6 snowfall days, and 22.36" (568mm) of snow is accumulated.Daylight
The average length of the day in April is 13h and 31min.On the first day of the month, sunrise is at 6:51 am and sunset at 7:40 pm. On the last day of April, sunrise is at 6:03 am and sunset at 8:16 pm CDT.
Sunshine
In April, the average sunshine in Castle Rock is 7.4h.UV index
In April, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: During April, 3 as the daily maximum UV index converts into the following advice:
Be vigilant - A duty to shield skin and eyes from injury exists. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Castle Rock, MN
- Average high temperature in April: 52.9°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (20.8°F).
- Average low temperature in April: 37.2°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (7.7°F).
Average pressure in April
Castle Rock, MN
- Average pressure in April: 29.95"Hg
The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in April
Castle Rock, MN
- 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 July (7mph).
Average humidity in April
Castle Rock, MN
- Average humidity in April: 73%
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are April and October (73%).
Average rainfall in April
Castle Rock, MN
- Average rainfall in April: 2.36"
The wettest month (with the highest rainfall) is June (4.21").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in April
Castle Rock, MN
- Average rainfall days in April: 13.6 days
The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in April
Castle Rock, MN
- Average snowfall in April: 1.65"
The month with the highest snowfall is February (6.1").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Castle Rock, MN
- Average snowfall days in April: 4.1 days
The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Castle Rock, MN
- Average daylight in April: 13h and 30min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in April: 7h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in April
Castle Rock, MN
- Average sunshine days in April: 12.5 days
The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is June (10.2 days).
Average UV index in April
Castle Rock, MN
- 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, November and December (UV index 1).
Average cloud cover in April
Castle Rock, MN
- Average cloud cover in April: 51
The month with the most cloud cover is January (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in April
Castle Rock, MN
- 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).
