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, characterized by an average high temperature of 22.8°F (-5.1°C) and a low temperature of 9.3°F (-12.6°C), is generally the coldest month.Humidity
The most humid month in Garretson is January, with an average relative humidity of 88%.Rainfall
In January, the rain falls for 2.7 days. Throughout January, 0.67" (17mm) of precipitation is accumulated. Throughout the year, in Garretson, there are 112.2 rainfall days, and 20.67" (525mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Garretson, during January, snow falls for 8.9 days and regularly aggregates up to 3.43" (87mm) of snow. In Garretson, South Dakota, during the entire year, snow falls for 42.1 days and aggregates up to 18.94" (481mm) of snow.Daylight
The average length of the day in January is 9h and 22min.On the first day of the month, sunrise is at 7:59 am and sunset at 4:59 pm. On the last day of January, in Garretson, sunrise is at 7:43 am and sunset at 5:34 pm CST.
Sunshine
January has the least sunshine of the year, with an average of 4h of sunshine.UV index
The months with the lowest UV index in Garretson, South Dakota, are January, February, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.Note: An average maximum UV index of 2 in January leads to these recommendations:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Garretson?
How cold is January in Garretson?
What is the most humid month in Garretson?
What is the average humidity in January in Garretson?
How much does it rain in Garretson in January?
How much does it snow in Garretson in January?
How many hours of daylight does Garretson have in January?
When is the sunrise / sunset in January in Garretson?
What is the month with the least sunshine in Garretson?
How long on average sun shines in January in Garretson?
What is the month with the lowest UV index in Garretson?
What is the UV index intensity in January in Garretson?
Average temperature in January
Garretson, SD
- Average high temperature in January: 22.8°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (22.8°F).
- Average low temperature in January: 9.3°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (9.3°F).
Average pressure in January
Garretson, 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 (29.86"Hg).
Average wind speed in January
Garretson, 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 (8mph).
Average humidity in January
Garretson, SD
- Average humidity in January: 88%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (67%).
Average rainfall in January
Garretson, SD
- Average rainfall in January: 0.67"
The wettest month (with the highest rainfall) is June (3.19").
The driest month (with the least rainfall) is November (0.63").
Average rainfall days in January
Garretson, SD
- Average rainfall days in January: 2.7 days
The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (2.2 days).
Average snowfall in January
Garretson, SD
- Average snowfall in January: 3.43"
The month with the highest snowfall is February (4.61").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Garretson, SD
- Average snowfall days in January: 8.9 days
The month with the highest number of snowfall days is December (10 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Garretson, 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 0min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in January
Garretson, SD
- Average sunshine days in January: 20.9 days
The month with the most sunshine days is November (22.8 days).
The month with the least sunshine days is June (10.7 days).
Average UV index in January
Garretson, SD
- Average UV index in January: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in January
Garretson, SD
- Average cloud cover in January: 56
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in January
Garretson, 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).
Garretson, South Dakota, USA
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