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 31.6°F (-0.2°C) and a low of 19.8°F (-6.8°C).Humidity
The months with the highest humidity in Saint Marys are January, February and December, with an average relative humidity of 83%.Rainfall
In Saint Marys, in January, during 7.4 rainfall days, 1.97" (50mm) of precipitation is typically accumulated. In Saint Marys, during the entire year, the rain falls for 161.4 days and collects up to 29.25" (743mm) of precipitation.Snowfall
Months with snowfall in Saint Marys are January through May, October through December. In Saint Marys, Ohio, in January, snow falls for 12.4 days, with typically accumulated 2.95" (75mm) of snow. In Saint Marys, during the entire year, snow falls for 44.7 days and aggregates up to 12.32" (313mm) of snow.Daylight
In Saint Marys, the average length of the day in January is 9h and 40min.On the first day of the month, sunrise is at 8:00 am and sunset at 5:21 pm. On the last day of January, sunrise is at 7:48 am and sunset at 5:53 pm EST.
Sunshine
January has the least sunshine of the year in Saint Marys, with an average of 3.4h of sunshine.UV index
In Saint Marys, Ohio, the average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 2 during January translates into the following guidance:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month in Saint Marys?
How cold is January in Saint Marys?
What are the most humid months in Saint Marys?
What is the average humidity in January in Saint Marys?
How many days does it rain in January in Saint Marys?
How many days does it snow in January in Saint Marys?
How many hours of daylight does Saint Marys have in January?
When is the sunrise / sunset in January in Saint Marys?
What is the month with the least sunshine in Saint Marys?
How long on average sun shines in January in Saint Marys?
What is the UV index intensity in January in Saint Marys?
Average temperature in January
Saint Marys, OH
- Average high temperature in January: 31.6°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.6°F).
- Average low temperature in January: 19.8°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in January
Saint Marys, OH
- Average pressure in January: 30.12"Hg
The months with the highest atmospheric pressure are January and November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Saint Marys, OH
- Average wind speed in January: 10.7mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in January
Saint Marys, OH
- Average humidity in January: 83%
The months with the highest relative humidity are January, February and December (83%).
The month with the lowest relative humidity is October (75%).
Average rainfall in January
Saint Marys, OH
- Average rainfall in January: 1.97"
The wettest month (with the highest rainfall) is May (3.5").
The driest month (with the least rainfall) is February (1.85").
Average rainfall days in January
Saint Marys, OH
- Average rainfall days in January: 7.4 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is January (7.4 days).
Average snowfall in January
Saint Marys, OH
- Average snowfall in January: 2.95"
The month with the highest snowfall is February (3.82").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Saint Marys, OH
- Average snowfall days in January: 12.4 days
The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Saint Marys, OH
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January: 3h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in January
Saint Marys, OH
- Average sunshine days in January: 11.4 days
The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is June (9.4 days).
Average UV index in January
Saint Marys, OH
- Average UV index in January: 2
The months with the highest UV index are July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in January
Saint Marys, 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 32).
Average visibility in January
Saint Marys, OH
- Average visibility in January: 5mi
The months with the highest visibility are February, March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are January, August and September (5mi).
Saint Marys, Ohio, USA
Weather forecast for your location
2. Allow the app to use your location