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
Ottumwa's coldest temperatures are experienced in January, with average high temperatures of 29.3°F (-1.5°C) and lows of 16.2°F (-8.8°C).Humidity
In Ottumwa, Iowa, the average relative humidity in January is 82%.Rainfall
The month with the least rainfall in Ottumwa, Iowa, is January, when the rain falls for 5.2 days and typically collects 1.06" (27mm) of precipitation.Snowfall
Months with snowfall in Ottumwa are January through May, October through December. In Ottumwa, during January, snow falls for 10.2 days and regularly aggregates up to 3.86" (98mm) of snow. In Ottumwa, during the entire year, snow falls for 33.5 days and aggregates up to 14.17" (360mm) of snow.Daylight
In Ottumwa, the average length of the day in January is 9h and 38min.On the first day of January in Ottumwa, sunrise is at 7:34 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 5:24 pm CST.
Sunshine
With an average of 4.2h of sunshine, January has the least sunshine of the year in Ottumwa, Iowa.UV index
The months with the lowest UV index in Ottumwa are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: An average UV index of 2 in January transforms into this advice:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year in Ottumwa?
How cold is it in Ottumwa in January?
What is the average humidity in January in Ottumwa?
What is the driest month in Ottumwa?
How many days does it rain in January in Ottumwa?
How many days does it snow in January in Ottumwa?
How many hours of daylight does Ottumwa have in January?
When is the sunrise / sunset in January in Ottumwa?
What is the month with the least sunshine in Ottumwa?
How many hours of sunshine does Ottumwa have in January?
What is the month with the lowest UV index in Ottumwa?
What is the UV index reading in January in Ottumwa?
Average temperature in January
Ottumwa, IA
- Average high temperature in January: 29.3°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in January: 16.2°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in January
Ottumwa, 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 (29.89"Hg).
Average wind speed in January
Ottumwa, IA
- Average wind speed in January: 10.8mph
The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in January
Ottumwa, IA
- Average humidity in January: 82%
The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (72%).
Average rainfall in January
Ottumwa, IA
- Average rainfall in January: 1.06"
The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in January
Ottumwa, IA
- Average rainfall days in January: 5.2 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (5.2 days).
Average snowfall in January
Ottumwa, IA
- Average snowfall in January: 3.86"
The month with the highest snowfall is February (4.17").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Ottumwa, IA
- Average snowfall days in January: 10.2 days
The month with the highest number of snowfall days is January (10.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Ottumwa, 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 1min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in January
Ottumwa, IA
- Average sunshine days in January: 16.5 days
The month with the most sunshine days is December (18.9 days).
The month with the least sunshine days is May (11.6 days).
Average UV index in January
Ottumwa, IA
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Ottumwa, IA
- Average cloud cover in January: 54
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are August and September (Cloud cover 29).
Average visibility in January
Ottumwa, 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).
Ottumwa, Iowa, USA
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