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
Temperature records mark January as the coldest month, with highs averaging 36.1°F (2.3°C) and lows at 23.5°F (-4.7°C).Humidity
The months with the highest humidity are January, February and December, with an average relative humidity of 81%.Rainfall
In Merwin, in January, it is raining for 7.9 days, with typically 1.22" (31mm) of accumulated precipitation. Throughout the year, in Merwin, Ohio, there are 139.9 rainfall days, and 18.11" (460mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In January, it is snowing for 6.9 days. Throughout January, 1.46" (37mm) of snow is accumulated. Throughout the year, there are 28.2 snowfall days, and 6.46" (164mm) of snow is accumulated.Daylight
In Merwin, the average length of the day in January is 9h and 48min.On the first day of January, sunrise is at 7:55 am and sunset at 5:24 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 5:56 pm EST.
Sunshine
The month with the least sunshine is January, with an average of 3.8h of sunshine.UV index
The months with the lowest UV index in Merwin are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the average person.Note: In January, the average maximum UV index of 2 translates into the following recommendations:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
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 most humid month?
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 Merwin have in January?
When is the sunrise / sunset in January?
What is the month with the least sunshine?
How long on average sun shines in January?
What is the month with the lowest UV index in Merwin?
How high is the UV index in January?
Average temperature in January
Merwin, OH
- Average high temperature in January: 36.1°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in January: 23.5°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in January
Merwin, 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
Merwin, OH
- Average wind speed in January: 8.8mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.1mph).
Average humidity in January
Merwin, OH
- Average humidity in January: 81%
The months with the highest relative humidity are January, February and December (81%).
The months with the lowest relative humidity are August, September and October (75%).
Average rainfall in January
Merwin, OH
- Average rainfall in January: 1.22"
The wettest month (with the highest rainfall) is May (2.05").
The driest month (with the least rainfall) is September (0.94").
Average rainfall days in January
Merwin, OH
- Average rainfall days in January: 7.9 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in January
Merwin, OH
- Average snowfall in January: 1.46"
The month with the highest snowfall is March (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Merwin, OH
- Average snowfall days in January: 6.9 days
The month with the highest number of snowfall days is January (6.9 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
Merwin, 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 5min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in January
Merwin, OH
- Average sunshine days in January: 16.5 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in January
Merwin, 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
Merwin, OH
- Average cloud cover in January: 60
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in January
Merwin, OH
- 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).
Merwin, Ohio, USA
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