January weather forecastDecker, IN
January
Weather in January
January, the same as December, is an icy winter month in Decker, Indiana, with an average temperature fluctuating between 36.9°F (2.7°C) and 24.4°F (-4.2°C).Temperature
Decker's January weather, marked by an average high temperature of 36.9°F (2.7°C) and an average low temperature of 24.4°F (-4.2°C), is the coldest in the year.Humidity
In January, the average relative humidity is 78%.Rainfall
In January, the rain falls for 5 days. Throughout January, 0.59" (15mm) of precipitation is accumulated. Throughout the year, there are 89 rainfall days, and 7.6" (193mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In January, it is snowing for 3.4 days. Throughout January, 0.2" (5mm) of snow is accumulated. Throughout the year, there are 13.3 snowfall days, and 0.91" (23mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 50min.On the first day of January, sunrise is at 8:07 am and sunset at 5:39 pm. On the last day of the month, sunrise is at 7:56 am and sunset at 6:10 pm EST.
Sunshine
In Decker, the average sunshine in January is 4.6h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In January, the maximum UV index of 2 translates into these guidelines:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Decker, IN
- Average high temperature in January: 36.9°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in January: 24.4°F
The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).
Average pressure in January
Decker, IN
- 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 (29.94"Hg).
Average wind speed in January
Decker, IN
- Average wind speed in January: 9.9mph
The windiest month (with the highest average wind speed) is February (10mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in January
Decker, IN
- Average humidity in January: 78%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (70%).
Average rainfall in January
Decker, IN
- Average rainfall in January: 0.59"
The wettest month (with the highest rainfall) is April (0.91").
The driest month (with the least rainfall) is September (0.28").
Average rainfall days in January
Decker, IN
- Average rainfall days in January: 5 days
The month with the highest number of rainy days is May (10.8 days).
The month with the least rainy days is December (4.9 days).
Average snowfall in January
Decker, IN
- Average snowfall in January: 0.2"
The month with the highest snowfall is March (0.24").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Decker, IN
- Average snowfall days in January: 3.4 days
The month with the highest number of snowfall days is February (4.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Decker, IN
- Average daylight in January: 9h and 48min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January: 4h and 36min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 30min).
Average sunshine days in January
Decker, IN
- Average sunshine days in January: 23 days
The month with the most sunshine days is December (23.5 days).
The month with the least sunshine days is May (16.9 days).
Average UV index in January
Decker, IN
- 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
Decker, IN
- 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 June and August (Cloud cover 28).
Average visibility in January
Decker, IN
- 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).
