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
Thor's coldest temperatures are experienced in January, with average high temperatures of 24.3°F (-4.3°C) and lows of 11.5°F (-11.4°C).Humidity
With an average relative humidity of 87%, January is the most humid month.Rainfall
January is the month with the least rainfall in Thor. Rain falls for 4.5 days and accumulates 0.94" (24mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In January, it is snowing for 11.8 days. Throughout January, 4.37" (111mm) of snow is accumulated. In Thor, during the entire year, snow falls for 44 days and aggregates up to 17.44" (443mm) of snow.Daylight
In Thor, the average length of the day in January is 9h and 28min.On the first day of the month, sunrise is at 7:46 am and sunset at 4:52 pm. On the last day of January, sunrise is at 7:31 am and sunset at 5:27 pm CST.
Sunshine
January has the least sunshine of the year, with an average of 3.8h of sunshine.UV index
January is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high daily UV index of 1 during January translates into the following directions:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
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?
How many hours of daylight does Thor have in January?
What time are sunrise and sunset in January?
What is the month with the least sunshine?
How long on average sun shines in January in Thor?
What is the month with the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Thor, IA
- Average high temperature in January: 24.3°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (24.3°F).
- Average low temperature in January: 11.5°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (11.5°F).
Average pressure in January
Thor, 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
Thor, IA
- Average wind speed in January: 10.9mph
The windiest month (with the highest average wind speed) is April (11mph).
The calmest months (with the lowest average wind speed) are July and August (7.3mph).
Average humidity in January
Thor, IA
- Average humidity in January: 87%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (69%).
Average rainfall in January
Thor, IA
- Average rainfall in January: 0.94"
The wettest month (with the highest rainfall) is June (3.7").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in January
Thor, IA
- Average rainfall days in January: 4.5 days
The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in January
Thor, IA
- Average snowfall in January: 4.37"
The month with the highest snowfall is February (4.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Thor, IA
- Average snowfall days in January: 11.8 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Thor, IA
- Average daylight in January: 9h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January: 3h and 5min
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 48min).
Average sunshine days in January
Thor, IA
- Average sunshine days in January: 17.1 days
The month with the most sunshine days is November (18.1 days).
The month with the least sunshine days is June (10.4 days).
Average UV index in January
Thor, 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
Thor, IA
- Average cloud cover in January: 59
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 31).
Average visibility in January
Thor, IA
- Average visibility in January: 5mi
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
Thor, Iowa, USA
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