January weather forecastMarietta, IN
January
Weather in January
January, like December, in Marietta, Indiana, is an icy winter month, with an average temperature fluctuating between 22.5°F (-5.3°C) and 35.1°F (1.7°C).Temperature
Marietta's coldest month, January, registers temperatures that range from a high of 35.1°F (1.7°C) to a low of 22.5°F (-5.3°C).Humidity
In Marietta, the average relative humidity in January is 81%.Rainfall
In Marietta, in January, it is raining for 8.1 days, with typically 1.73" (44mm) of accumulated precipitation. Throughout the year, there are 149.3 rainfall days, and 25.83" (656mm) 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 8 days and typically aggregates up to 2.4" (61mm) of snow.Daylight
In Marietta, the average length of the day in January is 9h and 46min.On the first day of the month, sunrise is at 8:03 am and sunset at 5:30 pm. On the last day of January, sunrise is at 7:51 am and sunset at 6:02 pm EST.
Sunshine
January has the least sunshine of the year, with an average of 4.1h of sunshine.UV index
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 2 during January translates into the following directions:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Experience reduced UV exposure by about half when donning a wide-brim hat. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Marietta, IN
- Average high temperature in January: 35.1°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in January: 22.5°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in January
Marietta, IN
- Average pressure in January: 30.14"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Marietta, IN
- Average wind speed in January: 9.1mph
The windiest months (with the highest average wind speed) are January and February (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in January
Marietta, IN
- Average humidity in January: 81%
The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is October (74%).
Average rainfall in January
Marietta, IN
- Average rainfall in January: 1.73"
The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in January
Marietta, IN
- Average rainfall days in January: 8.1 days
The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in January
Marietta, IN
- Average snowfall in January: 2.4"
The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Marietta, IN
- Average snowfall days in January: 8 days
The month with the highest number of snowfall days is January (8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Marietta, IN
- Average daylight in January: 9h and 48min
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 24min).
- Average sunshine in January: 4h and 6min
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 6min).
Average sunshine days in January
Marietta, IN
- Average sunshine days in January: 16.1 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.9 days).
Average UV index in January
Marietta, 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, October, November and December (UV index 2).
Average cloud cover in January
Marietta, IN
- Average cloud cover in January: 58
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in January
Marietta, IN
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
