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 Marietta, January records the lowest average temperatures, peaking at 27.9°F (-2.3°C) and reaching a low of 16.9°F (-8.4°C).Humidity
In January, the average relative humidity is 87%.Rainfall
In Marietta, during January, the rain falls for 7 days and regularly aggregates up to 1.02" (26mm) of precipitation. Throughout the year, in Marietta, there are 137.8 rainfall days, and 13.74" (349mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In January, it is snowing for 18.1 days. Throughout January, 3.35" (85mm) of snow is accumulated. Throughout the year, there are 76.2 snowfall days, and 16.93" (430mm) of snow is accumulated.Daylight
In Marietta, the average length of the day in January is 9h and 27min.On the first day of January, sunrise is at 7:36 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 5:16 pm EST.
Sunshine
The average sunshine in January in Marietta is 2.8h.UV index
In January, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the average person.Note: In January, an average UV index of 2 transforms into the following instructions:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
How cold is it in January?
What is the average humidity in January?
How much does it rain in January?
How many days does it snow in January?
What is the average length of the day in January?
When is the sunrise / sunset in January?
How long on average sun shines in January?
What is the UV index reading in January?
Average temperature in January
Marietta, NY
- Average high temperature in January: 27.9°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in January: 16.9°F
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).
Average pressure in January
Marietta, NY
- Average pressure in January: 30.06"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Marietta, NY
- Average wind speed in January: 10.3mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (6mph).
Average humidity in January
Marietta, NY
- Average humidity in January: 87%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April and May (79%).
Average rainfall in January
Marietta, NY
- Average rainfall in January: 1.02"
The wettest month (with the highest rainfall) is May (1.5").
The driest month (with the least rainfall) is September (0.67").
Average rainfall days in January
Marietta, NY
- Average rainfall days in January: 7 days
The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is February (6.7 days).
Average snowfall in January
Marietta, NY
- Average snowfall in January: 3.35"
The month with the highest snowfall is February (3.74").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Marietta, NY
- Average snowfall days in January: 18.1 days
The month with the highest number of snowfall days is January (18.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Marietta, NY
- Average daylight in January: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January: 2h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 2h and 30min).
Average sunshine days in January
Marietta, NY
- Average sunshine days in January: 10.2 days
The month with the most sunshine days is September (17.1 days).
The month with the least sunshine days is February (7.9 days).
Average UV index in January
Marietta, NY
- Average UV index in January: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in January
Marietta, NY
- Average cloud cover in January: 73
The month with the most cloud cover is February (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in January
Marietta, NY
- Average visibility in January: 5mi
The months with the highest visibility are April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, July and December (5mi).
Marietta, New York, USA
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