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
Sioux City experiences its lowest average temperatures in January, reaching a peak of 27°F (-2.8°C) and a minimum of 13.5°F (-10.3°C).Humidity
The most humid month is January, with an average relative humidity of 83%.Rainfall
January and February are months with the least rain in Sioux City when the rain falls for 2.6 days and typically aggregates up to 0.39" (10mm) of rain.Snowfall
Months with snowfall are January through April, October through December. The month with the most snowfall in Sioux City is January, when snow falls for 8.2 days and typically aggregates up to 1.77" (45mm) of snow.Daylight
The average length of the day in January is 9h and 29min.On the first day of January, sunrise is at 7:55 am and sunset at 5:02 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:37 pm CST.
Sunshine
With an average of 4.5h of sunshine, January has the least sunshine of the year.UV index
With an average maximum UV index of 1, January is the month with the lowest UV index in Sioux City. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 1 in January translates into this advice:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Frequently asked questions
What is the coldest time of year in Sioux City?
How cold is January in Sioux City?
What is the most humid month in Sioux City?
What is the average humidity in January in Sioux City?
What is the driest month in Sioux City?
How much does it rain in Sioux City in January?
When does it snow the most in Sioux City?
How much does it snow in Sioux City in January?
How many hours of daylight does Sioux City have in January?
What time are sunrise and sunset in January in Sioux City?
What is the month with the least sunshine in Sioux City?
How many hours of sunshine does Sioux City have in January?
When is the lowest UV index in Sioux City?
What is the UV index reading in January in Sioux City?
Average temperature in January
Sioux City, IA
- Average high temperature in January: 27°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in January: 13.5°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in January
Sioux City, IA
- Average pressure in January: 30.16"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in January
Sioux City, IA
- Average wind speed in January: 10.7mph
The windiest month (with the highest average wind speed) is April (11mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in January
Sioux City, IA
- Average humidity in January: 83%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (65%).
Average rainfall in January
Sioux City, IA
- Average rainfall in January: 0.39"
The wettest month (with the highest rainfall) is June (1.85").
The driest months (with the least rainfall) are January and February (0.39").
Average rainfall days in January
Sioux City, IA
- Average rainfall days in January: 2.6 days
The month with the highest number of rainy days is June (14.6 days).
The month with the least rainy days is January (2.6 days).
Average snowfall in January
Sioux City, IA
- Average snowfall in January: 1.77"
The month with the highest snowfall is January (1.77").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Sioux City, IA
- Average snowfall days in January: 8.2 days
The month with the highest number of snowfall days is January (8.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Sioux City, IA
- Average daylight in January: 9h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January: 4h and 3min
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 30min).
Average sunshine days in January
Sioux City, IA
- Average sunshine days in January: 22.6 days
The month with the most sunshine days is January (22.6 days).
The month with the least sunshine days is June (13.1 days).
Average UV index in January
Sioux City, IA
- Average UV index in January: 1
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in January
Sioux City, IA
- Average cloud cover in January: 51
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in January
Sioux City, IA
- 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).
Sioux City, Iowa, USA
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