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
Frederick's January weather, with an average high temperature of 19.8°F (-6.8°C) and an average low temperature of 5.4°F (-14.8°C), tends to be the coldest of the year.Humidity
The most humid month is January, with an average relative humidity of 89%.Rainfall
January is the month with the least rainfall in Frederick. Rain falls for 1.7 days and accumulates 0.39" (10mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. The months with the most snowfall are January and December, with an average 2.76" (70mm) of accumulated snow.Daylight
In January, the average length of the day is 9h and 9min.On the first day of January, sunrise is at 8:15 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 7:57 am and sunset at 5:37 pm CST.
Sunshine
With an average of 3.8h of sunshine, January has the least sunshine of the year.UV index
The months with the lowest UV index in Frederick are January, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The daily high UV index of 1 during January translates into the following recommendations:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
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 January?
What is the most humid month?
What is the average humidity in January in Frederick?
What is the driest month?
How much does it rain in January?
What is the snowiest month?
How much does it snow in January?
What is the average length of the day in January in Frederick?
When are sunrise and sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Frederick have in January?
When is the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Frederick, SD
- Average high temperature in January: 19.8°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (19.8°F).
- Average low temperature in January: 5.4°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).
Average pressure in January
Frederick, SD
- Average pressure in January: 30.16"Hg
The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in January
Frederick, SD
- Average wind speed in January: 10.3mph
The windiest months (with the highest average wind speed) are April and October (10.7mph).
The calmest month (with the lowest average wind speed) is August (8.2mph).
Average humidity in January
Frederick, SD
- Average humidity in January: 89%
The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are August and September (61%).
Average rainfall in January
Frederick, SD
- Average rainfall in January: 0.39"
The wettest month (with the highest rainfall) is June (2.83").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in January
Frederick, SD
- Average rainfall days in January: 1.7 days
The month with the highest number of rainy days is June (14.3 days).
The month with the least rainy days is January (1.7 days).
Average snowfall in January
Frederick, SD
- Average snowfall in January: 2.76"
The months with the highest snowfall are January and December (2.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Frederick, SD
- Average snowfall days in January: 11.5 days
The month with the highest number of snowfall days is February (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Frederick, SD
- Average daylight in January: 9h and 1min
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 January: 3h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in January
Frederick, SD
- Average sunshine days in January: 18 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (13.8 days).
Average UV index in January
Frederick, SD
- Average UV index in January: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in January
Frederick, SD
- Average cloud cover in January: 59
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in January
Frederick, SD
- Average visibility in January: 5mi
The months with the highest visibility are February, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and March (5mi).
Frederick, South Dakota, USA
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