January weather forecastOacoma, SD
January
Weather in January
January, the same as December, in Oacoma, South Dakota, is another subzero cold winter month, with an average temperature fluctuating between 26.1°F (-3.3°C) and 12.6°F (-10.8°C).Temperature
January is the coldest month, with an average high-temperature of 26.1°F (-3.3°C) and an average low-temperature of 12.6°F (-10.8°C).Humidity
The most humid month is January, with an average relative humidity of 86%.Rainfall
In Oacoma, in January, during 4.8 rainfall days, 0.59" (15mm) of precipitation is typically accumulated. In Oacoma, during the entire year, the rain falls for 107.6 days and collects up to 17.83" (453mm) of precipitation.Snowfall
January through April, October through December are months with snowfall in Oacoma. In Oacoma, in January, snow falls for 11.7 days, with typically accumulated 3.35" (85mm) of snow. Throughout the year, there are 50.9 snowfall days, and 17.87" (454mm) of snow is accumulated.Daylight
In Oacoma, the average length of the day in January is 9h and 22min.On the first day of the month, sunrise is at 8:11 am and sunset at 5:10 pm. On the last day of January, in Oacoma, sunrise is at 7:55 am and sunset at 5:46 pm CST.
Sunshine
With an average of 4.7h of sunshine, January has the least sunshine of the year in Oacoma.UV index
In Oacoma, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In January, the maximum UV index of 2 suggests this advice:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Oacoma, 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
Oacoma, 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
Oacoma, 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
Oacoma, 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
Oacoma, 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
Oacoma, 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
Oacoma, 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
Oacoma, 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
Oacoma, 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 42min
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
Oacoma, 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
Oacoma, 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
Oacoma, 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
Oacoma, 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).
