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
January, with an average high of 28°F (-2.2°C) and a low of 15.1°F (-9.4°C), signifies the coldest month of the year.Humidity
January is the most humid month, with an average relative humidity of 82%.Rainfall
The month with the least rainfall in Onawa is January, when the rain falls for 2.9 days and typically collects 0.67" (17mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In Onawa, in January, snow falls for 8.9 days, with typically accumulated 2.48" (63mm) of snow. Throughout the year, in Onawa, there are 32.9 snowfall days, and 11.69" (297mm) of snow is accumulated.Daylight
In Onawa, Iowa, the average length of the day in January is 9h and 32min.On the first day of the month, sunrise is at 7:52 am and sunset at 5:03 pm. On the last day of January, in Onawa, sunrise is at 7:38 am and sunset at 5:37 pm CST.
Sunshine
With an average of 4.4h of sunshine, January has the least sunshine of the year.UV index
In January, the average daily maximum UV index in Onawa, Iowa, is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: In January, the maximum UV index of 2 transforms into these recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Onawa?
How cold is January in Onawa?
What is the most humid month in Onawa?
What is the average humidity in January in Onawa?
What is the driest month in Onawa?
How much does it rain in Onawa in January?
How many days does it snow in January in Onawa?
What is the average length of the day in January in Onawa?
When are sunrise and sunset in January in Onawa?
What is the month with the least sunshine in Onawa?
How long on average sun shines in January in Onawa?
What is the UV index intensity in January in Onawa?
Average temperature in January
Onawa, IA
- Average high temperature in January: 28°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (28°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
Onawa, 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 (29.86"Hg).
Average wind speed in January
Onawa, IA
- Average wind speed in January: 10.4mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).
Average humidity in January
Onawa, IA
- Average humidity in January: 82%
The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are April and October (66%).
Average rainfall in January
Onawa, IA
- Average rainfall in January: 0.67"
The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in January
Onawa, IA
- Average rainfall days in January: 2.9 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is February (2.7 days).
Average snowfall in January
Onawa, IA
- Average snowfall in January: 2.48"
The month with the highest snowfall is February (3.03").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Onawa, IA
- Average snowfall days in January: 8.9 days
The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Onawa, IA
- Average daylight in January: 9h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January: 4h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in January
Onawa, IA
- Average sunshine days in January: 19.4 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (12 days).
Average UV index in January
Onawa, 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 February and December (UV index 1).
Average cloud cover in January
Onawa, IA
- Average cloud cover in January: 52
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in January
Onawa, 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).
Onawa, Iowa, USA
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