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, marked by an average high-temperature of 22.5°F (-5.3°C) and a low-temperature of 7.9°F (-13.4°C), is the coldest month.Humidity
January is the most humid month, with an average relative humidity of 88%.Rainfall
January is the month with the least rainfall. Rain falls for 2.5 days and accumulates 0.51" (13mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Ashton, during January, snow falls for 9.8 days and regularly aggregates up to 3.31" (84mm) of snow. Throughout the year, in Ashton, South Dakota, there are 43.7 snowfall days, and 18.66" (474mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 14min.On the first day of the month, sunrise is at 8:12 am and sunset at 5:02 pm. On the last day of January, in Ashton, sunrise is at 7:54 am and sunset at 5:39 pm CST.
Sunshine
With an average of 4.1h of sunshine, January has the least sunshine of the year.UV index
The months with the lowest UV index in Ashton are January and February, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 1 during January leads to these instructions:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Frequently asked questions
What is the coldest time of year in Ashton?
How cold is January in Ashton?
What is the most humid month in Ashton?
What is the average humidity in January in Ashton?
What is the driest month in Ashton?
How many days does it rain in January in Ashton?
How much does it snow in Ashton in January?
What is the average length of the day in January in Ashton?
When is the sunrise / sunset in January in Ashton?
What is the month with the least sunshine in Ashton?
How many hours of sunshine does Ashton have in January?
What are the months with the lowest UV index in Ashton?
What is the UV index reading in January in Ashton?
Average temperature in January
Ashton, SD
- Average high temperature in January: 22.5°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 (22.5°F).
- Average low temperature in January: 7.9°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (7.9°F).
Average pressure in January
Ashton, 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 (29.84"Hg).
Average wind speed in January
Ashton, SD
- Average wind speed in January: 9.8mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (8.5mph).
Average humidity in January
Ashton, SD
- Average humidity in January: 88%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is September (60%).
Average rainfall in January
Ashton, SD
- Average rainfall in January: 0.51"
The wettest month (with the highest rainfall) is June (3.03").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in January
Ashton, SD
- Average rainfall days in January: 2.5 days
The month with the highest number of rainy days is June (15.1 days).
The month with the least rainy days is February (1.9 days).
Average snowfall in January
Ashton, SD
- Average snowfall in January: 3.31"
The month with the highest snowfall is February (4.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Ashton, SD
- Average snowfall days in January: 9.8 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Ashton, 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 1min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in January
Ashton, SD
- Average sunshine days in January: 19.5 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (12.2 days).
Average UV index in January
Ashton, SD
- Average UV index in January: 1
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in January
Ashton, SD
- Average cloud cover in January: 55
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 22).
Average visibility in January
Ashton, 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).
Ashton, South Dakota, USA
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