January weather forecastEthan, SD
January
Weather in January
January, like December, is another subzero cold winter month in Ethan, South Dakota, with temperature in the range of an average low of 10.2°F (-12.1°C) and an average high of 24.4°F (-4.2°C).Temperature
The coldest period is January, when temperatures fluctuate between an average high of 24.4°F (-4.2°C) and a low of 10.2°F (-12.1°C).Humidity
With an average relative humidity of 87%, January is the most humid month.Rainfall
In Ethan, in January, during 2.6 rainfall days, 0.31" (8mm) of precipitation is typically accumulated. In Ethan, during the entire year, the rain falls for 93.2 days and collects up to 11.3" (287mm) of precipitation.Snowfall
January through April, October through December are months with snowfall in Ethan. In Ethan, in January, during 8.7 snowfall days, 1.38" (35mm) of snow is typically accumulated. In Ethan, during the entire year, snow falls for 35.3 days and aggregates up to 7.17" (182mm) of snow.Daylight
In January, the average length of the day is 9h and 23min.On the first day of the month, sunrise is at 8:04 am and sunset at 5:05 pm. On the last day of January, sunrise is at 7:49 am and sunset at 5:41 pm CST.
Sunshine
The month with the least sunshine is January, with an average of 4.4h of sunshine.UV index
The month with the lowest UV index in Ethan is January, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 1 during January leads to these instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Ethan, SD
- Average high temperature in January: 24.4°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (24.4°F).
- Average low temperature in January: 10.2°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (10.2°F).
Average pressure in January
Ethan, SD
- Average pressure in January: 30.16"Hg
The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in January
Ethan, SD
- Average wind speed in January: 10.3mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (8.6mph).
Average humidity in January
Ethan, SD
- Average humidity in January: 87%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are September and October (63%).
Average rainfall in January
Ethan, SD
- Average rainfall in January: 0.31"
The wettest month (with the highest rainfall) is May (1.65").
The driest months (with the least rainfall) are February and November (0.28").
Average rainfall days in January
Ethan, SD
- Average rainfall days in January: 2.6 days
The month with the highest number of rainy days is June (13.6 days).
The month with the least rainy days is February (1.9 days).
Average snowfall in January
Ethan, SD
- Average snowfall in January: 1.38"
The month with the highest snowfall is February (1.42").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Ethan, SD
- Average snowfall days in January: 8.7 days
The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Ethan, SD
- Average daylight in January: 9h and 24min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January: 4h and 24min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in January
Ethan, SD
- Average sunshine days in January: 21.6 days
The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is June (12.8 days).
Average UV index in January
Ethan, SD
- Average UV index in January: 1
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in January
Ethan, SD
- Average cloud cover in January: 52
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 22).
Average visibility in January
Ethan, SD
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
