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, exhibiting average temperatures of 35.2°F (1.8°C) at the peak and 22.8°F (-5.1°C) at the base.Humidity
The average relative humidity in January is 81%.Rainfall
In January, the rain falls for 9.9 days. Throughout January, 2.68" (68mm) of precipitation is accumulated. In Napoleon, during the entire year, the rain falls for 169.3 days and collects up to 36.18" (919mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Napoleon, during January, snow falls for 8.1 days and regularly aggregates up to 2.48" (63mm) of snow. Throughout the year, there are 31.2 snowfall days, and 11.42" (290mm) of snow is accumulated.Daylight
In Napoleon, the average length of the day in January is 9h and 47min.On the first day of January, sunrise is at 8:00 am and sunset at 5:28 pm. On the last day of the month, sunrise is at 7:49 am and sunset at 6:00 pm EST.
Sunshine
With an average of 4h of sunshine, January has the least sunshine of the year.UV index
The average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for average individuals.Note: A maximum high daily UV index of 2 during January translates into the following directions:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
How cold is it in Napoleon in January?
What is the average humidity in January?
How much does it rain in January?
How many days does it snow in January?
How many hours of daylight does Napoleon 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 Napoleon have in January?
What is the UV index intensity in January?
Average temperature in January
Napoleon, IN
- Average high temperature in January: 35.2°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in January: 22.8°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure in January
Napoleon, IN
- 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
Napoleon, IN
- Average wind speed in January: 9.1mph
The windiest months (with the highest average wind speed) are January and February (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in January
Napoleon, IN
- Average humidity in January: 81%
The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is October (74%).
Average rainfall in January
Napoleon, IN
- Average rainfall in January: 2.68"
The wettest month (with the highest rainfall) is April (4.09").
The driest month (with the least rainfall) is September (2.24").
Average rainfall days in January
Napoleon, IN
- Average rainfall days in January: 9.9 days
The month with the highest number of rainy days is May (20.3 days).
The month with the least rainy days is February (8.9 days).
Average snowfall in January
Napoleon, IN
- Average snowfall in January: 2.48"
The month with the highest snowfall is February (2.83").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Napoleon, IN
- Average snowfall days in January: 8.1 days
The month with the highest number of snowfall days is January (8.1 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
Napoleon, IN
- 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: 4h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in January
Napoleon, IN
- Average sunshine days in January: 14.8 days
The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is May (8.8 days).
Average UV index in January
Napoleon, IN
- 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, IN
- Average cloud cover in January: 59
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in January
Napoleon, IN
- Average visibility in January: 5mi
The months with the highest visibility are March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, May and July (5mi).
Napoleon, Indiana, USA
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