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
In Greencastle, the month of January registers the lowest temperatures, averaging 33.6°F (0.9°C) at the peak and 20.8°F (-6.2°C) at the lowest.Humidity
In January, the average relative humidity is 81%.Rainfall
In Greencastle, in January, during 6.6 rainfall days, 0.87" (22mm) of precipitation is typically accumulated. Throughout the year, there are 118.9 rainfall days, and 12.13" (308mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In Greencastle, in January, during 5.8 snowfall days, 0.98" (25mm) of snow is typically accumulated. In Greencastle, during the entire year, snow falls for 22.2 days and aggregates up to 3.82" (97mm) of snow.Daylight
The average length of the day in January is 9h and 45min.On the first day of January, sunrise is at 8:08 am and sunset at 5:33 pm. On the last day of the month, sunrise is at 7:56 am and sunset at 6:05 pm EST.
Sunshine
The month with the least sunshine in Greencastle is January, with an average of 4.2h of sunshine.UV index
The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the average person.Note: The UV index of 2 during January translates into the following guidance:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
How cold is it in January?
What is the average humidity in January in Greencastle?
How many days does it rain in January?
How many days does it snow in January?
How many hours of daylight does Greencastle have in January?
When are sunrise and sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Greencastle have in January?
What are the months with the lowest UV index in Greencastle?
What is the UV index reading in January?
Average temperature in January
Greencastle, IN
- Average high temperature in January: 33.6°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (33.6°F).
- Average low temperature in January: 20.8°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).
Average pressure in January
Greencastle, IN
- Average pressure in January: 30.14"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Greencastle, IN
- Average wind speed in January: 9.9mph
The windiest months (with the highest average wind speed) are January and February (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.9mph).
Average humidity in January
Greencastle, IN
- Average humidity in January: 81%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (74%).
Average rainfall in January
Greencastle, IN
- Average rainfall in January: 0.87"
The wettest month (with the highest rainfall) is May (1.5").
The driest month (with the least rainfall) is September (0.67").
Average rainfall days in January
Greencastle, IN
- Average rainfall days in January: 6.6 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is February (6.4 days).
Average snowfall in January
Greencastle, IN
- Average snowfall in January: 0.98"
The month with the highest snowfall is December (1.22").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Greencastle, IN
- Average snowfall days in January: 5.8 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Greencastle, IN
- Average daylight in January: 9h and 4min
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 24min).
- Average sunshine in January: 4h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in January
Greencastle, IN
- Average sunshine days in January: 20.4 days
The month with the most sunshine days is December (21 days).
The month with the least sunshine days is May (12.1 days).
Average UV index in January
Greencastle, IN
- 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, October, November and December (UV index 2).
Average cloud cover in January
Greencastle, IN
- Average cloud cover in January: 58
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in January
Greencastle, IN
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Greencastle, Indiana, USA
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