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
The month of January sees the lowest average temperatures, reaching 30.6°F (-0.8°C) at the peak and 19.2°F (-7.1°C) at the low.Humidity
The months with the highest humidity are January and February, with an average relative humidity of 84%.Rainfall
In Napoleon, in January, during 8.8 rainfall days, 1.73" (44mm) of precipitation is typically accumulated. In Napoleon, during the entire year, the rain falls for 165.5 days and collects up to 27.24" (692mm) of precipitation.Snowfall
Months with snowfall are January through May, November and December. In Napoleon, during January, snow falls for 14.7 days and regularly aggregates up to 3.94" (100mm) of snow. Throughout the year, there are 52.7 snowfall days, and 15.24" (387mm) of snow is accumulated.Daylight
In Napoleon, Ohio, the average length of the day in January is 9h and 35min.On the first day of January in Napoleon, sunrise is at 8:02 am and sunset at 5:17 pm. On the last day of the month, sunrise is at 7:48 am and sunset at 5:50 pm EST.
Sunshine
January has the least sunshine of the year, with an average of 3.3h of sunshine.UV index
In January, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the average person.Note: In January, the maximum UV index of 2 suggests these recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Frequently asked questions
What is the coldest time of year in Napoleon?
How cold is January in Napoleon?
What is the most humid month in Napoleon?
What is the average humidity in January in Napoleon?
How much does it rain in Napoleon in January?
How much does it snow in Napoleon in January?
What is the average length of the day in January in Napoleon?
What time are sunrise and sunset in January in Napoleon?
What is the month with the least sunshine in Napoleon?
How many hours of sunshine does Napoleon have in January?
How high is the UV index in January in Napoleon?
Average temperature in January
Napoleon, OH
- Average high temperature in January: 30.6°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in January: 19.2°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).
Average pressure in January
Napoleon, OH
- Average pressure in January: 30.1"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Napoleon, OH
- Average wind speed in January: 10.3mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in January
Napoleon, OH
- Average humidity in January: 84%
The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is October (74%).
Average rainfall in January
Napoleon, OH
- Average rainfall in January: 1.73"
The wettest month (with the highest rainfall) is April (3.15").
The driest month (with the least rainfall) is December (1.61").
Average rainfall days in January
Napoleon, OH
- Average rainfall days in January: 8.8 days
The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is February (8.6 days).
Average snowfall in January
Napoleon, OH
- Average snowfall in January: 3.94"
The month with the highest snowfall is February (4.09").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in January
Napoleon, OH
- Average snowfall days in January: 14.7 days
The month with the highest number of snowfall days is January (14.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Napoleon, OH
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January: 3h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in January
Napoleon, OH
- Average sunshine days in January: 10.7 days
The month with the most sunshine days is November (15.2 days).
The month with the least sunshine days is February (9.3 days).
Average UV index in January
Napoleon, OH
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in January
Napoleon, OH
- Average cloud cover in January: 65
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in January
Napoleon, OH
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are January, February, August and September (5mi).
Napoleon, Ohio, USA
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