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
January's commencement is accompanied by an average high-temperature of a still wintry 0.2°C (32.4°F), diverging marginally from December's 0.1°C (32.2°F). The low-temperature averages to a subzero cold -7.4°C (18.7°F) during the nights of January.Humidity
The most humid month is January, with an average relative humidity of 77%.Rainfall
January is the month with the least rainfall. Rain falls for 6.5 days and accumulates 15mm (0.59") of precipitation.Snowfall
Months with snowfall are January through May, September through December. In Whitewood, during January, snow falls for 11.4 days and regularly aggregates up to 81mm (3.19") of snow. In Whitewood, during the entire year, snow falls for 62.1 days and aggregates up to 921mm (36.26") of snow.Daylight
In January, the average length of the day is 9h and 18min.On the first day of the month, sunrise is at 7:30 am and sunset at 4:25 pm. On the last day of January, sunrise is at 7:14 am and sunset at 5:01 pm MST.
Sunshine
In Whitewood, the average sunshine in January is 6h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In January, a daily UV index of 2 turns into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is January?
What is the most humid month?
What is the average humidity in January?
What is the driest month?
How many days does it rain in January?
How much does it snow in Whitewood in January?
What is the average length of the day in January?
When are sunrise and sunset in January?
How long on average sun shines in January in Whitewood?
When is the lowest UV index?
How high is the UV index in January?
Average temperature in January
Whitewood, SD
- Average high temperature in January: 0.2°C
The warmest month (with the highest average high temperature) is July (29.3°C).
The month with the lowest average high temperature is December (0.1°C).
- Average low temperature in January: -7.4°C
The month with the highest average low temperature is July (16.9°C).
The coldest month (with the lowest average low temperature) is February (-7.8°C).
Average pressure in January
Whitewood, SD
- Average pressure in January: 1020.6mbar
The month with the highest atmospheric pressure is January (1020.6mbar).
The month with the lowest atmospheric pressure is June (1010.6mbar).
Average wind speed in January
Whitewood, SD
- Average wind speed in January: 16.4km/h
The windiest month (with the highest average wind speed) is October (16.7km/h).
The calmest month (with the lowest average wind speed) is August (13.3km/h).
Average humidity in January
Whitewood, SD
- Average humidity in January: 77%
The month with the highest relative humidity is January (77%).
The months with the lowest relative humidity are August and September (49%).
Average rainfall in January
Whitewood, SD
- Average rainfall in January: 15mm
The wettest month (with the highest rainfall) is May (64mm).
The driest month (with the least rainfall) is January (15mm).
Average rainfall days in January
Whitewood, SD
- Average rainfall days in January: 6.5 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is December (5.8 days).
Average snowfall in January
Whitewood, SD
- Average snowfall in January: 81mm
The month with the highest snowfall is April (209mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in January
Whitewood, SD
- Average snowfall days in January: 11.4 days
The month with the highest number of snowfall days is February (12.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Whitewood, SD
- 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: 6h and 0min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 54min).
Average sunshine days in January
Whitewood, SD
- Average sunshine days in January: 17.1 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (9.4 days).
Average UV index in January
Whitewood, SD
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Whitewood, SD
- Average cloud cover in January: 37
The months with the most cloud cover are February and April (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in January
Whitewood, SD
- Average visibility in January: 8km
The months with the highest visibility are June, July, August and September (10km).
The month with the lowest visibility is January (8km).
Whitewood, South Dakota, USA
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