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
In Sullivan, the lowest average temperatures are observed in January, with a high of 36°F (2.2°C) and a low of 23.2°F (-4.9°C).Humidity
In Sullivan, the average relative humidity in January is 79%.Rainfall
In Sullivan, Indiana, in January, during 8.5 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. In Sullivan, during the entire year, the rain falls for 150.1 days and collects up to 28.5" (724mm) of precipitation.Snowfall
Months with snowfall in Sullivan, Indiana, are January through April, November and December. The month with the most snowfall in Sullivan, Indiana, is January, when snow falls for 7.3 days and typically aggregates up to 2.13" (54mm) of snow.Daylight
In Sullivan, the average length of the day in January is 9h and 47min.On the first day of the month, sunrise is at 8:08 am and sunset at 5:37 pm. On the last day of January, sunrise is at 7:57 am and sunset at 6:08 pm EST.
Sunshine
In January, the average sunshine is 4.5h.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 reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 2 in January converts into the following recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Frequently asked questions
What is the coldest month in Sullivan?
How cold is it in Sullivan in January?
What is the average humidity in January in Sullivan?
How many days does it rain in January in Sullivan?
When does it snow the most in Sullivan?
How much does it snow in Sullivan in January?
What is the average length of the day in January in Sullivan?
When are sunrise and sunset in January in Sullivan?
How many hours of sunshine does Sullivan have in January?
What is the month with the lowest UV index in Sullivan?
What is the UV index reading in January in Sullivan?
Average temperature in January
Sullivan, IN
- Average high temperature in January: 36°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (36°F).
- Average low temperature in January: 23.2°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).
Average pressure in January
Sullivan, IN
- Average pressure in January: 30.15"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Sullivan, IN
- Average wind speed in January: 9.8mph
The windiest months (with the highest average wind speed) are January and February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in January
Sullivan, IN
- Average humidity in January: 79%
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in January
Sullivan, IN
- Average rainfall in January: 2.01"
The wettest month (with the highest rainfall) is April (4.06").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in January
Sullivan, IN
- Average rainfall days in January: 8.5 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (8.5 days).
Average snowfall in January
Sullivan, IN
- Average snowfall in January: 2.13"
The month with the highest snowfall is January (2.13").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Sullivan, 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 May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Sullivan, IN
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January: 4h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 24min).
Average sunshine days in January
Sullivan, IN
- Average sunshine days in January: 16.9 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (10.1 days).
Average UV index in January
Sullivan, IN
- Average UV index in January: 2
The months with the highest UV index are May, 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
Sullivan, IN
- Average cloud cover in January: 55
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in January
Sullivan, 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).
Sullivan, Indiana, USA
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