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, having an average high-temperature of 31.6°F (-0.2°C) and an average low-temperature of 20.1°F (-6.6°C), is the coldest month.Humidity
The months with the highest humidity are January, February and December, with an average relative humidity of 83%.Rainfall
In Keystone, during January, the rain falls for 6.3 days and regularly aggregates up to 1.1" (28mm) of precipitation. In Keystone, during the entire year, the rain falls for 137.2 days and collects up to 17.95" (456mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In Keystone, in January, during 9.6 snowfall days, 1.38" (35mm) of snow is typically accumulated. In Keystone, during the entire year, snow falls for 35.6 days and aggregates up to 7.64" (194mm) of snow.Daylight
In January, the average length of the day in Keystone is 9h and 40min.On the first day of the month, sunrise is at 8:04 am and sunset at 5:24 pm. On the last day of January, sunrise is at 7:51 am and sunset at 5:57 pm EST.
Sunshine
January has the least sunshine of the year in Keystone, with an average of 3.5h of sunshine.UV index
In January, the average daily maximum UV index in Keystone is 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: A maximum high daily UV index of 2 during January translates into the following directions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest?
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 much does it snow in January?
What is the average length of the day in January?
What time are sunrise and sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Keystone have in January?
How high is the UV index in January?
Average temperature in January
Keystone, IN
- Average high temperature in January: 31.6°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 (31.6°F).
- Average low temperature in January: 20.1°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in January
Keystone, IN
- 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
Keystone, IN
- 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
Keystone, IN
- 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 (74%).
Average rainfall in January
Keystone, IN
- Average rainfall in January: 1.1"
The wettest month (with the highest rainfall) is May (2.24").
The driest month (with the least rainfall) is February (0.98").
Average rainfall days in January
Keystone, IN
- Average rainfall days in January: 6.3 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is February (5.4 days).
Average snowfall in January
Keystone, IN
- Average snowfall in January: 1.38"
The month with the highest snowfall is February (2.2").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Keystone, IN
- Average snowfall days in January: 9.6 days
The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Keystone, IN
- 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 3min
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 30min).
Average sunshine days in January
Keystone, IN
- Average sunshine days in January: 18 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in January
Keystone, 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
Keystone, IN
- Average cloud cover in January: 64
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in January
Keystone, IN
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are August and September (5mi).
Keystone, Indiana, USA
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