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
January is the coldest month, with an average high-temperature of 34.3°F (1.3°C) and an average low-temperature of 22.3°F (-5.4°C).Humidity
January, February and December, with an average relative humidity of 82%, are the most humid months.Rainfall
In Martinsville, Ohio, in January, during 9.8 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. Throughout the year, there are 169.2 rainfall days, and 34.45" (875mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Martinsville, in January, snow falls for 11.8 days, with typically accumulated 3.39" (86mm) of snow. In Martinsville, during the entire year, snow falls for 41.5 days and aggregates up to 14.92" (379mm) of snow.Daylight
In January, the average length of the day is 9h and 46min.On the first day of the month, sunrise is at 7:54 am and sunset at 5:22 pm. On the last day of January, sunrise is at 7:43 am and sunset at 5:54 pm EST.
Sunshine
The month with the least sunshine is January, with an average of 3.6h 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 value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum UV index of 2 in January translates into the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest?
How cold is January?
What are the most humid months?
What is the average humidity in January?
How many days does it rain in January?
How many days does it snow in January?
How many hours of daylight does Martinsville have in January?
What time are sunrise and sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Martinsville have in January?
When is the lowest UV index?
How high is the UV index in January?
Average temperature in January
Martinsville, OH
- Average high temperature in January: 34.3°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (34.3°F).
- Average low temperature in January: 22.3°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).
Average pressure in January
Martinsville, OH
- Average pressure in January: 30.14"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in January
Martinsville, OH
- Average wind speed in January: 10.1mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in January
Martinsville, OH
- Average humidity in January: 82%
The months with the highest relative humidity are January, February and December (82%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in January
Martinsville, OH
- Average rainfall in January: 2.6"
The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in January
Martinsville, OH
- Average rainfall days in January: 9.8 days
The month with the highest number of rainy days is May (20.5 days).
The month with the least rainy days is February (9 days).
Average snowfall in January
Martinsville, OH
- Average snowfall in January: 3.39"
The month with the highest snowfall is February (3.78").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Martinsville, OH
- Average snowfall days in January: 11.8 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Martinsville, 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 30min).
- Average sunshine in January: 3h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in January
Martinsville, OH
- Average sunshine days in January: 11.3 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is May (8.7 days).
Average UV index in January
Martinsville, 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
Martinsville, OH
- Average cloud cover in January: 62
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in January
Martinsville, OH
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Martinsville, Ohio, USA
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