January weather forecastRosston, IN
January
Weather in January
January, the same as December, is another cold winter month in Rosston, Indiana, with an average temperature fluctuating between 32.2°F (0.1°C) and 20.3°F (-6.5°C).Temperature
Rosston notes the coldest temperatures in January, with a high average of 32.2°F (0.1°C) and a low of 20.3°F (-6.5°C).Humidity
In Rosston, the average relative humidity in January is 82%.Rainfall
In January, in Rosston, the rain falls for 5.9 days. Throughout January, 0.79" (20mm) of precipitation is accumulated. Throughout the year, there are 121.7 rainfall days, and 11.69" (297mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. The month with the most snowfall is January, when snow falls for 7.3 days and typically aggregates up to 1.06" (27mm) of snow.Daylight
The average length of the day in January is 9h and 43min.On the first day of the month, sunrise is at 8:07 am and sunset at 5:30 pm. On the last day of January, sunrise is at 7:54 am and sunset at 6:02 pm EST.
Sunshine
With an average of 3.9h of sunshine, January has the least sunshine of the year.UV index
In Rosston, Indiana, the average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In January, the maximum UV index of 2 transforms into these recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Rosston, IN
- Average high temperature in January: 32.2°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (32.2°F).
- Average low temperature in January: 20.3°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 (20.3°F).
Average pressure in January
Rosston, IN
- Average pressure in January: 30.13"Hg
The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Rosston, IN
- Average wind speed in January: 10.1mph
The windiest months (with the highest average wind speed) are January and February (10.1mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in January
Rosston, IN
- Average humidity in January: 82%
The month with the highest relative humidity is December (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in January
Rosston, IN
- Average rainfall in January: 0.79"
The wettest month (with the highest rainfall) is May (1.46").
The driest month (with the least rainfall) is February (0.67").
Average rainfall days in January
Rosston, IN
- Average rainfall days in January: 5.9 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in January
Rosston, IN
- Average snowfall in January: 1.06"
The month with the highest snowfall is January (1.06").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Rosston, IN
- Average snowfall days in January: 7.3 days
The month with the highest number of snowfall days is January (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Rosston, IN
- Average daylight in January: 9h and 42min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January: 3h and 54min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in January
Rosston, IN
- Average sunshine days in January: 19 days
The month with the most sunshine days is December (19.5 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in January
Rosston, IN
- Average UV index in January: 2
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in January
Rosston, IN
- Average cloud cover in January: 61
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in January
Rosston, 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).





