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
The coldest time of the year is January, with temperatures averaging a high of 27°F (-2.8°C) and a low of 13.6°F (-10.2°C).Humidity
With an average relative humidity of 83%, January is the most humid month.Rainfall
The month with the least rainfall is January, when the rain falls for 3.3 days and typically collects 0.51" (13mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Glad Valley, in January, snow falls for 12.3 days, with typically accumulated 3.07" (78mm) of snow. In Glad Valley, during the entire year, snow falls for 58.3 days and aggregates up to 22.95" (583mm) of snow.Daylight
In Glad Valley, the average length of the day in January is 9h and 12min.On the first day of January, sunrise is at 7:26 am and sunset at 4:14 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 4:51 pm MST.
Sunshine
January has the least sunshine of the year in Glad Valley, with an average of 4.8h of sunshine.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 estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In January, the maximum UV index of 2 suggests these recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Note well! The intensity of the Sun's UV rays can be nearly doubled by 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 January?
What is the most humid month?
What is the average humidity in January in Glad Valley?
What is the driest month?
How many days does it rain in January in Glad Valley?
How much does it snow in January?
How many hours of daylight does Glad Valley have in January?
When is the sunrise / sunset in January?
What is the month with the least sunshine?
How long on average sun shines in January in Glad Valley?
What is the month with the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Glad Valley, SD
- Average high temperature in January: 27°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in January: 13.6°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).
Average pressure in January
Glad Valley, SD
- Average pressure in January: 30.15"Hg
The months with the highest atmospheric pressure are January and February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in January
Glad Valley, SD
- Average wind speed in January: 11.3mph
The windiest month (with the highest average wind speed) is April (12.2mph).
The calmest months (with the lowest average wind speed) are February and August (10.4mph).
Average humidity in January
Glad Valley, SD
- Average humidity in January: 83%
The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are August and September (49%).
Average rainfall in January
Glad Valley, SD
- Average rainfall in January: 0.51"
The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in January
Glad Valley, SD
- Average rainfall days in January: 3.3 days
The month with the highest number of rainy days is May (14.7 days).
The months with the least rainy days are January and February (3.3 days).
Average snowfall in January
Glad Valley, SD
- Average snowfall in January: 3.07"
The month with the highest snowfall is February (5.12").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Glad Valley, SD
- Average snowfall days in January: 12.3 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Glad Valley, SD
- Average daylight in January: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in January: 4h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in January
Glad Valley, SD
- Average sunshine days in January: 16.4 days
The month with the most sunshine days is September (20.4 days).
The month with the least sunshine days is April (12.4 days).
Average UV index in January
Glad Valley, SD
- Average UV index in January: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Glad Valley, SD
- Average cloud cover in January: 50
The month with the most cloud cover is January (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 19).
Average visibility in January
Glad Valley, 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).
Glad Valley, South Dakota, USA
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