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
In Webster, January records the lowest average temperatures, peaking at 18.9°F (-7.3°C) and reaching a low of 5°F (-15°C).Humidity
January is the most humid month, with an average relative humidity of 91%.Rainfall
In Webster, during January, the rain falls for 2.5 days and regularly aggregates up to 0.71" (18mm) of precipitation. In Webster, during the entire year, the rain falls for 112.9 days and collects up to 22.09" (561mm) of precipitation.Snowfall
Months with snowfall in Webster are January through May, October through December. In Webster, during January, snow falls for 15.1 days and regularly aggregates up to 4.45" (113mm) of snow. In Webster, during the entire year, snow falls for 68.4 days and aggregates up to 23.74" (603mm) of snow.Daylight
In January, the average length of the day is 9h and 13min.On the first day of the month, sunrise is at 8:09 am and sunset at 4:57 pm. On the last day of January, sunrise is at 7:51 am and sunset at 5:35 pm CST.
Sunshine
With an average of 3.2h of sunshine, January has the least sunshine of the year in Webster.UV index
January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Webster. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 1 in January translates into these instructions:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year in Webster?
How cold is it in Webster in January?
What is the most humid month in Webster?
What is the average humidity in January in Webster?
How much does it rain in Webster in January?
How much does it snow in Webster in January?
What is the average length of the day in January in Webster?
When are sunrise and sunset in January in Webster?
What is the month with the least sunshine in Webster?
How many hours of sunshine does Webster have in January?
When is the lowest UV index in Webster?
What is the UV index intensity in January in Webster?
Average temperature in January
Webster, SD
- Average high temperature in January: 18.9°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (18.9°F).
- Average low temperature in January: 5°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (5°F).
Average pressure in January
Webster, 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
Webster, SD
- Average wind speed in January: 11mph
The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is July (8.7mph).
Average humidity in January
Webster, SD
- Average humidity in January: 91%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is September (66%).
Average rainfall in January
Webster, SD
- Average rainfall in January: 0.71"
The wettest month (with the highest rainfall) is July (3.58").
The driest month (with the least rainfall) is November (0.63").
Average rainfall days in January
Webster, SD
- Average rainfall days in January: 2.5 days
The month with the highest number of rainy days is June (17.9 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in January
Webster, SD
- Average snowfall in January: 4.45"
The month with the highest snowfall is December (4.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Webster, SD
- Average snowfall days in January: 15.1 days
The month with the highest number of snowfall days is January (15.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Webster, 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 1min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in January
Webster, SD
- Average sunshine days in January: 14.3 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is June (10.4 days).
Average UV index in January
Webster, SD
- Average UV index in January: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in January
Webster, SD
- Average cloud cover in January: 66
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 27).
Average visibility in January
Webster, SD
- Average visibility in January: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Webster, South Dakota, USA
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