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
Marietta notes the coldest temperatures in January, with a high average of 36.1°F (2.3°C) and a low of 22.8°F (-5.1°C).Humidity
The months with the highest humidity are January and February, with an average relative humidity of 83%.Rainfall
In Marietta, Ohio, in January, it is raining for 9.1 days, with typically 1.61" (41mm) of accumulated precipitation. Throughout the year, there are 156.1 rainfall days, and 24.8" (630mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Marietta, during January, snow falls for 9.5 days and regularly aggregates up to 2.17" (55mm) of snow. In Marietta, during the entire year, snow falls for 31.3 days and aggregates up to 9.37" (238mm) 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 7:45 am and sunset at 5:12 pm. On the last day of January, in Marietta, sunrise is at 7:34 am and sunset at 5:44 pm EST.
Sunshine
The month with the least sunshine is January, with an average of 3.4h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily high UV index of 2 in January leads to these guidelines:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Frequently asked questions
What is the coldest time of year in Marietta?
How cold is it in Marietta in January?
What is the most humid month in Marietta?
What is the average humidity in January in Marietta?
How much does it rain in Marietta in January?
How much does it snow in Marietta in January?
What is the average length of the day in January in Marietta?
What time are sunrise and sunset in January in Marietta?
What is the month with the least sunshine in Marietta?
How many hours of sunshine does Marietta have in January?
What are the months with the lowest UV index in Marietta?
How high is the UV index in January in Marietta?
Average temperature in January
Marietta, OH
- Average high temperature in January: 36.1°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in January: 22.8°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure in January
Marietta, OH
- Average pressure in January: 30.14"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in January
Marietta, OH
- Average wind speed in January: 6.7mph
The windiest month (with the highest average wind speed) is February (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in January
Marietta, OH
- Average humidity in January: 83%
The months with the highest relative humidity are January and February (83%).
The months with the lowest relative humidity are June, July and August (76%).
Average rainfall in January
Marietta, OH
- Average rainfall in January: 1.61"
The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is September (1.46").
Average rainfall days in January
Marietta, OH
- Average rainfall days in January: 9.1 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is November (8.4 days).
Average snowfall in January
Marietta, OH
- Average snowfall in January: 2.17"
The month with the highest snowfall is February (2.8").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Marietta, OH
- Average snowfall days in January: 9.5 days
The month with the highest number of snowfall days is January (9.5 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, OH
- 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 24min).
- Average sunshine in January: 3h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in January
Marietta, OH
- Average sunshine days in January: 14.7 days
The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is May (9.8 days).
Average UV index in January
Marietta, OH
- 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
Marietta, OH
- Average cloud cover in January: 64
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in January
Marietta, OH
- Average visibility in January: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Marietta, Ohio, USA
Weather forecast for your location
2. Allow the app to use your location
