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
In Fort Thompson, the month of January registers the lowest temperatures, averaging 26.1°F (-3.3°C) at the peak and 12.6°F (-10.8°C) at the lowest.Humidity
The most humid month in Fort Thompson is January, with an average relative humidity of 86%.Rainfall
In January, the rain falls for 4.8 days. Throughout January, 0.59" (15mm) of precipitation is accumulated. In Fort Thompson, during the entire year, the rain falls for 107.6 days and collects up to 17.83" (453mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Fort Thompson, in January, during 11.7 snowfall days, 3.35" (85mm) of snow is typically accumulated. In Fort Thompson, during the entire year, snow falls for 50.9 days and aggregates up to 17.87" (454mm) of snow.Daylight
The average length of the day in January in Fort Thompson is 9h and 20min.On the first day of the month, sunrise is at 8:12 am and sunset at 5:09 pm. On the last day of January, sunrise is at 7:56 am and sunset at 5:45 pm CST.
Sunshine
With an average of 4.7h of sunshine, January has the least sunshine of the year.UV index
In January, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 2 during January leads to these advisories:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Frequently asked questions
What are the coldest months in Fort Thompson?
How cold is January in Fort Thompson?
What is the most humid month in Fort Thompson?
What is the average humidity in January in Fort Thompson?
How much does it rain in Fort Thompson in January?
How much does it snow in Fort Thompson in January?
What is the average length of the day in January in Fort Thompson?
When is the sunrise / sunset in January in Fort Thompson?
What is the month with the least sunshine in Fort Thompson?
How many hours of sunshine does Fort Thompson have in January?
What is the UV index reading in January in Fort Thompson?
Average temperature in January
Fort Thompson, SD
- Average high temperature in January: 26.1°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in January: 12.6°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).
Average pressure in January
Fort Thompson, SD
- Average pressure in January: 30.16"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in January
Fort Thompson, SD
- Average wind speed in January: 10.3mph
The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is August (9.1mph).
Average humidity in January
Fort Thompson, SD
- Average humidity in January: 86%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is September (58%).
Average rainfall in January
Fort Thompson, SD
- Average rainfall in January: 0.59"
The wettest month (with the highest rainfall) is June (3.03").
The driest month (with the least rainfall) is November (0.55").
Average rainfall days in January
Fort Thompson, SD
- Average rainfall days in January: 4.8 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in January
Fort Thompson, SD
- Average snowfall in January: 3.35"
The month with the highest snowfall is February (3.66").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Fort Thompson, SD
- Average snowfall days in January: 11.7 days
The months with the highest number of snowfall days are January and February (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Fort Thompson, SD
- Average daylight in January: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in January: 4h and 4min
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 42min).
Average sunshine days in January
Fort Thompson, SD
- Average sunshine days in January: 17.8 days
The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is April (11.8 days).
Average UV index in January
Fort Thompson, SD
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in January
Fort Thompson, SD
- Average cloud cover in January: 49
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in January
Fort Thompson, SD
- Average visibility in January: 5mi
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).
Fort Thompson, South Dakota, USA
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