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 20.7°F (-6.3°C) and a low-temperature of 6.3°F (-14.3°C), is the coldest month.Humidity
With an average relative humidity of 88%, January is the most humid month in Groton.Rainfall
The month with the least rainfall is January, when the rain falls for 3 days and typically collects 0.59" (15mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Groton, South Dakota. The month with the most snowfall is January, when snow falls for 13 days and typically aggregates up to 3.82" (97mm) of snow.Daylight
In Groton, the average length of the day in January is 9h and 11min.On the first day of the month, sunrise is at 8:12 am and sunset at 4:59 pm. On the last day of January, sunrise is at 7:54 am and sunset at 5:37 pm CST.
Sunshine
The month with the least sunshine in Groton, South Dakota, is January, with an average of 3.9h of sunshine.UV index
The months with the lowest UV index in Groton are January, February and November, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: During January, 1 as the daily maximum UV index converts into the following advice:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Frequently asked questions
What month is the coldest in Groton?
How cold is January in Groton?
What is the most humid month in Groton?
What is the average humidity in January in Groton?
What is the driest month in Groton?
How many days does it rain in January in Groton?
When does it snow the most in Groton?
How many days does it snow in January in Groton?
How many hours of daylight does Groton have in January?
When are sunrise and sunset in January in Groton?
What is the month with the least sunshine in Groton?
How long on average sun shines in January in Groton?
What are the months with the lowest UV index in Groton?
What is the UV index intensity in January in Groton?
Average temperature in January
Groton, SD
- Average high temperature in January: 20.7°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (20.7°F).
- Average low temperature in January: 6.3°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (6.3°F).
Average pressure in January
Groton, SD
- Average pressure in January: 30.16"Hg
The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in January
Groton, SD
- Average wind speed in January: 9.5mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).
Average humidity in January
Groton, SD
- Average humidity in January: 88%
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are August and September (60%).
Average rainfall in January
Groton, SD
- Average rainfall in January: 0.59"
The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in January
Groton, SD
- Average rainfall days in January: 3 days
The month with the highest number of rainy days is June (15 days).
The month with the least rainy days is February (2 days).
Average snowfall in January
Groton, SD
- Average snowfall in January: 3.82"
The month with the highest snowfall is January (3.82").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Groton, SD
- Average snowfall days in January: 13 days
The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Groton, 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: 3h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in January
Groton, SD
- Average sunshine days in January: 17.2 days
The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is June (12.7 days).
Average UV index in January
Groton, 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, February and November (UV index 1).
Average cloud cover in January
Groton, SD
- Average cloud cover in January: 57
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are July and August (Cloud cover 23).
Average visibility in January
Groton, 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).
Groton, South Dakota, USA
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