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
Knoxville's January weather, with an average high temperature of 28.6°F (-1.9°C) and an average low temperature of 15.1°F (-9.4°C), tends to be the coldest of the year.Humidity
With an average relative humidity of 83%, January is the most humid month in Knoxville, Iowa.Rainfall
In Knoxville, Iowa, in January, it is raining for 4.1 days, with typically 0.51" (13mm) of accumulated precipitation. In Knoxville, during the entire year, the rain falls for 115.3 days and collects up to 13.31" (338mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. January is the month with the most snowfall. Snow falls for 8.7 days and accumulates 2.24" (57mm) of snow.Daylight
In January, the average length of the day is 9h and 36min.On the first day of the month, sunrise is at 7:38 am and sunset at 4:53 pm. On the last day of January, sunrise is at 7:24 am and sunset at 5:26 pm CST.
Sunshine
With an average of 4.3h of sunshine, January has the least sunshine of the year in Knoxville.UV index
January is the month with the lowest UV index in Knoxville, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: A typical high UV index of 1 in January suggests the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Knoxville?
How cold is January in Knoxville?
What is the most humid month in Knoxville?
What is the average humidity in January in Knoxville?
How much does it rain in Knoxville in January?
When does it snow the most in Knoxville?
How much does it snow in Knoxville in January?
What is the average length of the day in January in Knoxville?
When are sunrise and sunset in January in Knoxville?
What is the month with the least sunshine in Knoxville?
How long on average sun shines in January in Knoxville?
What is the month with the lowest UV index in Knoxville?
What is the UV index intensity in January in Knoxville?
Average temperature in January
Knoxville, IA
- Average high temperature in January: 28.6°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (28.6°F).
- Average low temperature in January: 15.1°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).
Average pressure in January
Knoxville, 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 (29.89"Hg).
Average wind speed in January
Knoxville, IA
- Average wind speed in January: 10.5mph
The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in January
Knoxville, 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 (71%).
Average rainfall in January
Knoxville, IA
- Average rainfall in January: 0.51"
The wettest month (with the highest rainfall) is May (2.24").
The driest months (with the least rainfall) are February and December (0.47").
Average rainfall days in January
Knoxville, IA
- Average rainfall days in January: 4.1 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is February (3.9 days).
Average snowfall in January
Knoxville, IA
- Average snowfall in January: 2.24"
The month with the highest snowfall is January (2.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Knoxville, IA
- Average snowfall days in January: 8.7 days
The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Knoxville, IA
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January: 4h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in January
Knoxville, IA
- Average sunshine days in January: 20.1 days
The months with the most sunshine days are November and December (20.5 days).
The month with the least sunshine days is June (11.6 days).
Average UV index in January
Knoxville, IA
- Average UV index in January: 1
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in January
Knoxville, IA
- Average cloud cover in January: 53
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July, August and September (Cloud cover 29).
Average visibility in January
Knoxville, 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).
Knoxville, Iowa, USA
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