Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
As November shifts into December, a slight alteration in temperatures is observed, with average highs reducing from a frosty 48.4°F (9.1°C) to an icy 37.4°F (3°C). During the month of December, Winchester's nighttime temperature lowers to an average of 27.5°F (-2.5°C).Humidity
In Winchester, the average relative humidity in December is 83%.Rainfall
In Winchester, in December, during 9.9 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. In Winchester, during the entire year, the rain falls for 169.7 days and collects up to 31.65" (804mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. The month with the most snowfall is December, when snow falls for 10.2 days and typically aggregates up to 3.78" (96mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:43 am and sunset at 5:14 pm. On the last day of December, sunrise is at 8:02 am and sunset at 5:24 pm EST.
Sunshine
The average sunshine in December is 3.9h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: In December, the UV index of 1 transforms into the following advice:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How many days does it rain in December?
When does it snow the most?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Winchester have in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Winchester, IN
- Average high temperature in December: 37.4°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (32°F).
- Average low temperature in December: 27.5°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 December
Winchester, IN
- Average pressure in December: 30.11"Hg
The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Winchester, IN
- Average wind speed in December: 9.9mph
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 December
Winchester, IN
- Average humidity in December: 83%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (75%).
Average rainfall in December
Winchester, IN
- Average rainfall in December: 2.28"
The wettest month (with the highest rainfall) is May (3.86").
The driest month (with the least rainfall) is February (1.93").
Average rainfall days in December
Winchester, IN
- Average rainfall days in December: 9.9 days
The month with the highest number of rainy days is May (19.9 days).
The months with the least rainy days are January and February (9 days).
Average snowfall in December
Winchester, IN
- Average snowfall in December: 3.78"
The month with the highest snowfall is December (3.78").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Winchester, IN
- Average snowfall days in December: 10.2 days
The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Winchester, IN
- Average daylight in December: 9h and 2min
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 24min).
- Average sunshine in December: 3h and 5min
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 December
Winchester, IN
- Average sunshine days in December: 11.8 days
The month with the most sunshine days is November (16 days).
The month with the least sunshine days is May (8.7 days).
Average UV index in December
Winchester, IN
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Winchester, IN
- Average cloud cover in December: 60
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 December
Winchester, IN
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Winchester, Indiana, USA
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