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
With average high and low temperatures of 28.8°F (-1.8°C) and 15.4°F (-9.2°C) respectively, January is Walnut's coldest month.Humidity
With an average relative humidity of 82%, January is the most humid month.Rainfall
The month with the least rainfall is January, when the rain falls for 5.1 days and typically collects 0.87" (22mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Walnut, in January, snow falls for 9.8 days, with typically accumulated 3.62" (92mm) of snow. In Walnut, during the entire year, snow falls for 35.8 days and aggregates up to 13.82" (351mm) of snow.Daylight
In Walnut, the average length of the day in January is 9h and 35min.On the first day of January, sunrise is at 7:47 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 5:35 pm CST.
Sunshine
The month with the least sunshine is January, with an average of 4.6h of sunshine.UV index
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Walnut. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 2 in January translates into these instructions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month in Walnut?
How cold is January?
What is the most humid month?
What is the average humidity in January?
What is the driest month?
How much does it rain in January?
How much does it snow in January?
How many hours of daylight does Walnut have in January?
When is the sunrise / sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Walnut have in January?
What are the months with the lowest UV index?
What is the UV index reading in January in Walnut?
Average temperature in January
Walnut, IA
- Average high temperature in January: 28.8°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in January: 15.4°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).
Average pressure in January
Walnut, 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 (29.87"Hg).
Average wind speed in January
Walnut, IA
- Average wind speed in January: 10.3mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is July (7mph).
Average humidity in January
Walnut, IA
- Average humidity in January: 82%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is October (68%).
Average rainfall in January
Walnut, IA
- Average rainfall in January: 0.87"
The wettest month (with the highest rainfall) is June (4.37").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days in January
Walnut, IA
- Average rainfall days in January: 5.1 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is February (3.6 days).
Average snowfall in January
Walnut, IA
- Average snowfall in January: 3.62"
The month with the highest snowfall is February (3.7").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Walnut, IA
- Average snowfall days in January: 9.8 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Walnut, 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 12min).
- Average sunshine in January: 4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in January
Walnut, IA
- Average sunshine days in January: 17.8 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is June (11 days).
Average UV index in January
Walnut, 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, October, November and December (UV index 2).
Average cloud cover in January
Walnut, IA
- Average cloud cover in January: 51
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in January
Walnut, IA
- Average visibility in January: 5mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Walnut, Iowa, USA
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