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
Harrison, South Dakota, witnesses the coldest weather in January, with temperatures averaging a high of 27.3°F (-2.6°C) and a low of 13.6°F (-10.2°C).Humidity
January is the most humid month in Harrison, with an average relative humidity of 84%.Rainfall
In Harrison, during January, the rain falls for 2.9 days and regularly aggregates up to 0.39" (10mm) of precipitation. Throughout the year, there are 104.1 rainfall days, and 14.29" (363mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. The months with the most snowfall are January and March, with an average 1.93" (49mm) of accumulated snow.Daylight
In Harrison, the average length of the day in January is 9h and 24min.On the first day of the month, sunrise is at 8:06 am and sunset at 5:08 pm. On the last day of January, sunrise is at 7:51 am and sunset at 5:43 pm CST.
Sunshine
With an average of 4.7h of sunshine, January has the least sunshine of the year.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 2 during January leads to these advisories:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
How cold is it in January?
What is the most humid month?
What is the average humidity in January?
How many days does it rain in January?
What is the snowiest month?
How many days does it snow in January?
What is the average length of the day in January?
What time are sunrise and sunset in January?
What is the month with the least sunshine?
How long on average sun shines in January?
When is the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Harrison, SD
- Average high temperature in January: 27.3°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (27.3°F).
- Average low temperature in January: 13.6°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).
Average pressure in January
Harrison, 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 (29.85"Hg).
Average wind speed in January
Harrison, SD
- Average wind speed in January: 10.4mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (8.3mph).
Average humidity in January
Harrison, SD
- Average humidity in January: 84%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (62%).
Average rainfall in January
Harrison, SD
- Average rainfall in January: 0.39"
The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is February (0.31").
Average rainfall days in January
Harrison, SD
- Average rainfall days in January: 2.9 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (2.9 days).
Average snowfall in January
Harrison, SD
- Average snowfall in January: 1.93"
The months with the highest snowfall are January and March (1.93").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Harrison, SD
- Average snowfall days in January: 8.2 days
The month with the highest number of snowfall days is January (8.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Harrison, 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: 9h and 0min).
- Average sunshine in January: 4h and 4min
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 42min).
Average sunshine days in January
Harrison, SD
- Average sunshine days in January: 20.9 days
The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in January
Harrison, 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
Harrison, 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 July (Cloud cover 23).
Average visibility in January
Harrison, 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).
Harrison, South Dakota, USA
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