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
With average high temperatures of 22.1°F (-5.5°C) and lows of 9.1°F (-12.7°C), January is the coldest month.Humidity
January is the most humid month, with an average relative humidity of 89%.Rainfall
January is the month with the least rainfall. Rain falls for 3.4 days and accumulates 0.87" (22mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Swea City. In Swea City, during January, snow falls for 13.9 days and regularly aggregates up to 4.57" (116mm) of snow. Throughout the year, there are 57.5 snowfall days, and 23.31" (592mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 24min.On the first day of the month, sunrise is at 7:49 am and sunset at 4:51 pm. On the last day of January, sunrise is at 7:34 am and sunset at 5:27 pm CST.
Sunshine
The month with the least sunshine is January, with an average of 3.7h of sunshine.UV index
The months with the lowest UV index are January, February and November, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: In January, the maximum UV index of 1 suggests these recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
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?
What is the driest month?
How many days does it rain in January?
How much does it snow in January?
What is the average length of the day in January in Swea City?
What time are sunrise and sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Swea City have in January?
What is the month with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Swea City, IA
- Average high temperature in January: 22.1°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (22.1°F).
- Average low temperature in January: 9.1°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (9.1°F).
Average pressure in January
Swea City, IA
- Average pressure in January: 30.15"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in January
Swea City, IA
- Average wind speed in January: 10.7mph
The windiest month (with the highest average wind speed) is February (10.8mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in January
Swea City, IA
- Average humidity in January: 89%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (68%).
Average rainfall in January
Swea City, IA
- Average rainfall in January: 0.87"
The wettest month (with the highest rainfall) is June (4.02").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days in January
Swea City, IA
- Average rainfall days in January: 3.4 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in January
Swea City, IA
- Average snowfall in January: 4.57"
The month with the highest snowfall is February (6.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Swea City, IA
- Average snowfall days in January: 13.9 days
The month with the highest number of snowfall days is January (13.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Swea City, IA
- Average daylight in January: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January: 3h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in January
Swea City, IA
- Average sunshine days in January: 15.3 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is June (8.5 days).
Average UV index in January
Swea City, IA
- 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, February and November (UV index 1).
Average cloud cover in January
Swea City, IA
- Average cloud cover in January: 60
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are July and September (Cloud cover 31).
Average visibility in January
Swea City, IA
- Average visibility in January: 5mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
Swea City, Iowa, USA
Weather forecast for your location
2. Allow the app to use your location