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
During the coldest month, January, temperatures average a high of 52.2°F (11.2°C) and a low of 36°F (2.2°C).Humidity
In Marietta, the average relative humidity in January is 64%.Rainfall
January and December are months with the least rain when the rain falls for 6.4 days and typically aggregates up to 1.42" (36mm) of rain.Snowfall
January through March, November and December are months with snowfall. In January, it is snowing for 0.8 days. Throughout January, 0.31" (8mm) of snow is accumulated. Throughout the year, in Marietta, there are 3.8 snowfall days, and 2.09" (53mm) of snow is accumulated.Daylight
In Marietta, Oklahoma, the average length of the day in January is 10h and 12min.On the first day of the month, sunrise is at 7:33 am and sunset at 5:30 pm. On the last day of January, sunrise is at 7:26 am and sunset at 5:57 pm CST.
Sunshine
In Marietta, the average sunshine in January is 6.1h.UV index
January, February and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 3 during January leads to these instructions:
Ensure safety - Recommendations to avert sunburn are presented. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
What is the average January temperature?
What is the average humidity in January?
What is the driest month?
How much does it rain in January?
How much does it snow in Marietta in January?
How many hours of daylight does Marietta have in January?
What time are sunrise and sunset in January in Marietta?
How long on average sun shines in January?
When is the lowest UV index?
How high is the UV index in January?
Average temperature in January
Marietta, OK
- Average high temperature in January: 52.2°F
The warmest month (with the highest average high temperature) is August (94.8°F).
The month with the lowest average high temperature is January (52.2°F).
- Average low temperature in January: 36°F
The month with the highest average low temperature is July (73.9°F).
The coldest month (with the lowest average low temperature) is January (36°F).
Average pressure in January
Marietta, OK
- 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 (29.89"Hg).
Average wind speed in January
Marietta, OK
- Average wind speed in January: 9.1mph
The windiest months (with the highest average wind speed) are March and April (10.4mph).
The calmest month (with the lowest average wind speed) is September (7mph).
Average humidity in January
Marietta, OK
- Average humidity in January: 64%
The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is August (58%).
Average rainfall in January
Marietta, OK
- Average rainfall in January: 1.42"
The wettest month (with the highest rainfall) is May (3.86").
The driest months (with the least rainfall) are January and December (1.42").
Average rainfall days in January
Marietta, OK
- Average rainfall days in January: 6.4 days
The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is January (6.4 days).
Average snowfall in January
Marietta, OK
- Average snowfall in January: 0.31"
The month with the highest snowfall is February (1.22").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Marietta, OK
- Average snowfall days in January: 0.8 days
The month with the highest number of snowfall days is February (1.7 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Marietta, OK
- Average daylight in January: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in January: 6h and 1min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in January
Marietta, OK
- Average sunshine days in January: 23.1 days
The month with the most sunshine days is January (23.1 days).
The month with the least sunshine days is May (15 days).
Average UV index in January
Marietta, OK
- Average UV index in January: 3
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in January
Marietta, OK
- Average cloud cover in January: 28
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in January
Marietta, OK
- 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).
Marietta, Oklahoma, USA
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