January weather forecastDexter, IA
January
Weather in January
January, like December, is a freezing cold winter month in Dexter, Iowa, with an average temperature ranging between max 28°F (-2.2°C) and min 14.5°F (-9.7°C).Temperature
Dexter, Iowa, experiences its lowest temperatures in January, with an average peak of 28°F (-2.2°C) and a low of 14.5°F (-9.7°C).Humidity
The months with the highest humidity are January and February, with an average relative humidity of 82%.Rainfall
January is the month with the least rainfall. Rain falls for 3.3 days and accumulates 0.55" (14mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Dexter, during January, snow falls for 8.8 days and regularly aggregates up to 2.32" (59mm) of snow. Throughout the year, in Dexter, there are 31.7 snowfall days, and 9.29" (236mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 35min.On the first day of January, sunrise is at 7:43 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:30 pm CST.
Sunshine
With an average of 4.3h of sunshine, January has the least sunshine of the year.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 1 during January morphs into the following directions:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Dexter, IA
- Average high temperature in January: 28°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (28°F).
- Average low temperature in January: 14.5°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (14.5°F).
Average pressure in January
Dexter, 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 (29.88"Hg).
Average wind speed in January
Dexter, IA
- Average wind speed in January: 10.6mph
The windiest months (with the highest average wind speed) are January and February (10.6mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in January
Dexter, IA
- Average humidity in January: 82%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (70%).
Average rainfall in January
Dexter, IA
- Average rainfall in January: 0.55"
The wettest month (with the highest rainfall) is June (3.11").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in January
Dexter, IA
- Average rainfall days in January: 3.3 days
The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is February (2.9 days).
Average snowfall in January
Dexter, IA
- Average snowfall in January: 2.32"
The month with the highest snowfall is February (2.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Dexter, IA
- Average snowfall days in January: 8.8 days
The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Dexter, 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 12min).
- Average sunshine in January: 4h and 18min
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 18min).
Average sunshine days in January
Dexter, IA
- Average sunshine days in January: 19.9 days
The month with the most sunshine days is December (22 days).
The month with the least sunshine days is May (12.1 days).
Average UV index in January
Dexter, IA
- Average UV index in January: 1
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
Dexter, 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 July and September (Cloud cover 30).
Average visibility in January
Dexter, IA
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
