Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
Castle Rock experiences its lowest average temperatures in January, reaching a peak of 20.8°F (-6.2°C) and a minimum of 7.7°F (-13.5°C).Humidity
With an average relative humidity of 91%, January is the most humid month in Castle Rock.Rainfall
The month with the least rainfall is January, when the rain falls for 3.1 days and typically collects 0.75" (19mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In January, in Castle Rock, it is snowing for 13.8 days. Throughout January, 3.82" (97mm) of snow is accumulated. Throughout the year, there are 55.6 snowfall days, and 22.36" (568mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 17min.On the first day of January, sunrise is at 7:49 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:19 pm CST.
Sunshine
The month with the least sunshine in Castle Rock is January, with an average of 3h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.Note: The UV index of 1 in January translates into these instructions:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
How cold is it in January?
What is the most humid month?
What is the average humidity in January in Castle Rock?
What is the driest month?
How much does it rain in January?
How much does it snow in January?
How many hours of daylight does Castle Rock have in January?
When is the sunrise / sunset in January?
What is the month with the least sunshine?
How long on average sun shines in January?
What is the month with the lowest UV index in Castle Rock?
What is the UV index intensity in January?
Average temperature in January
Castle Rock, MN
- Average high temperature in January: 20.8°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 January: 7.7°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 January
Castle Rock, MN
- Average pressure in January: 30.14"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 January
Castle Rock, MN
- Average wind speed in January: 8.6mph
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 January
Castle Rock, MN
- Average humidity in January: 91%
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 January
Castle Rock, MN
- Average rainfall in January: 0.75"
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 January
Castle Rock, MN
- Average rainfall days in January: 3.1 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 January
Castle Rock, MN
- Average snowfall in January: 3.82"
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 January
Castle Rock, MN
- Average snowfall days in January: 13.8 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 January /
Average sunshine in January
Castle Rock, MN
- Average daylight in January: 9h and 2min
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 January: 3h
The month with the most sunshine is July (Average sunshine: 10h).
The month with the least sunshine is January (Average sunshine: 3h).
Average sunshine days in January
Castle Rock, MN
- Average sunshine days in January: 16.2 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 January
Castle Rock, MN
- Average UV index in January: 1
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 January
Castle Rock, MN
- Average cloud cover in January: 68
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 January
Castle Rock, MN
- Average visibility in January: 4mi
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).
Castle Rock, Minnesota, USA
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