January weather forecastOttumwa, IA
January
Weather in January
The New Year draws in with colder days in Ottumwa, Iowa, with snow being a common sight. January is characterized by the lowest average temperature in the year, with the highest point reaching a chilly 29.3°F (-1.5°C) and coming down to a freezing 16.2°F (-8.8°C). The town experiences a frosty atmosphere, with snowfall recorded on around 10.2 days of the month. On brighter days, sunlight stretches for around 9.6 hours. Despite these chilling conditions, January is only the start of the snowy season in Ottumwa.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
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 36min
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 12min
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).
