December weather forecast
Westchester, IN

Weather in December

December, the first month of the winter in Westchester, is still a cold month, with an average temperature varying between 37.6°F (3.1°C) and 27.1°F (-2.7°C).

Temperature

In Westchester, the average high-temperature in December decreases from a frosty 48.4°F (9.1°C) in November to a cold 37.6°F (3.1°C). In Westchester, the average low-temperature is 27.1°F (-2.7°C).

Humidity

The months with the highest humidity are January, February and December, with an average relative humidity of 83%.

Rainfall

In Westchester, it is raining for 5.8 days, with typically 0.59" (15mm) of accumulated precipitation. In Westchester, during the entire year, the rain falls for 108.6 days and collects up to 8.74" (222mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. In December, it is snowing for 6.5 days. Throughout December, 0.71" (18mm) of snow is accumulated. In Westchester, during the entire year, snow falls for 32.7 days and aggregates up to 3.15" (80mm) of snow.

Daylight

With an average of 9h and 20min of daylight, December has the shortest days of the year in Westchester, Indiana.
On the first day of December, sunrise is at 7:43 am and sunset at 5:13 pm. On the last day of the month, sunrise is at 8:02 am and sunset at 5:22 pm EST.

Sunshine

The average sunshine in December in Westchester is 3.8h.

UV index

The month with the lowest UV index in Westchester is December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: In December, the average maximum UV index of 1 translate into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
[Resources]

FAQ

What is the temperature in December in Westchester?

In Westchester, Indiana, in December, the average high-temperature is 37.6°F (3.1°C), and the average low-temperature is 27.1°F (-2.7°C). in July, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 87.8°F (31°C).

What is the most humid month in Westchester?

The months with the highest humidity in Westchester, Indiana, are January, February and December, with an average relative humidity of 83%.

What is the average humidity in December in Westchester?

In Westchester, Indiana, the average relative humidity in December is 83%.

How much does it rain in Westchester in December?

In Westchester, Indiana, in December, during 5.8 rainfall days, 0.59" (15mm) of precipitation is typically accumulated.

How many days does it snow in December in Westchester?

In Westchester, Indiana, in December, snow falls for 6.5 days, with typically accumulated 0.71" (18mm) of snow.

What is the month with the shortest days in Westchester?

December has the shortest days of the year in Westchester, with an average of 9h and 20min of daylight.

How many hours of daylight does Westchester have in December?

In December, the average day length in Westchester, Indiana, is 9h and 20min.

What time are sunrise and sunset in December in Westchester?

On the first day of December in Westchester, sunrise is at 7:43 am and sunset at 5:13 pm. On the last day of the month, sunrise is at 8:02 am and sunset at 5:22 pm EST.

How many hours of sunshine does Westchester have in December?

The average sunshine duration in December in Westchester, Indiana, is 3.8h.

What is the month with the lowest UV index in Westchester?

December is the month with the lowest UV index in Westchester, Indiana, with an average maximum UV index of 1.

How high is the UV index in December in Westchester?

The average daily maximum UV index in December in Westchester, Indiana, is 1. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Westchester, IN

Average temperature in December - Westchester, IN
  • Average high temperature in December: 37.6°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 December: 27.1°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).

[Resources]

Average pressure in December
Westchester, IN

Average pressure in December - Westchester, IN
  • Average pressure in December: 30.11"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).

[Resources]

Average wind speed in December
Westchester, IN

Average wind speed in December - Westchester, IN
  • Average wind speed in December: 9.9mph

The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).

[Resources]

Average humidity in December
Westchester, IN

Average humidity in December - Westchester, IN
  • Average humidity in December: 83%

The months with the highest relative humidity are January, February and December (83%).
The month with the lowest relative humidity is October (74%).

[Resources]

Average rainfall in December
Westchester, IN

Average rainfall in December - Westchester, IN
  • Average rainfall in December: 0.59"

The wettest month (with the highest rainfall) is May (1.1").
The driest month (with the least rainfall) is February (0.47").

[Resources]

Average rainfall days in December
Westchester, IN

Average rainfall days in December - Westchester, IN
  • Average rainfall days in December: 5.8 days

The month with the highest number of rainy days is May (13.9 days).
The months with the least rainy days are January and February (4.8 days).

[Resources]

Average snowfall in December
Westchester, IN

Average snowfall in December - Westchester, IN
  • Average snowfall in December: 0.71"

The month with the highest snowfall is February (0.75").
The months with the least snowfall are May, June, July, August and September (0").

[Resources]

Average snowfall days in December
Westchester, IN

Average snowfall days in December - Westchester, IN
  • Average snowfall days in December: 6.5 days

The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

[Resources]

Average daylight in December /
Average sunshine in December
Westchester, IN

Average daylight in December / Average sunshine in December - Westchester, IN
  • Average daylight in December: 9h and 20min

The month with the longest days is June (Average daylight: 15h and 1min).
The month with the shortest days is December (Average daylight: 9h and 20min).

  • Average sunshine in December: 3h and 48min

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 24min).

[Resources]

Average sunshine days in December
Westchester, IN

Average sunshine days in December - Westchester, IN
  • Average sunshine days in December: 18.7 days

The months with the most sunshine days are October and November (19.7 days).
The month with the least sunshine days is June (13.3 days).

[Resources]

Average UV index in December
Westchester, IN

Average UV index in December - Westchester, IN
  • Average UV index in December: 1

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).

[Resources]

Average cloud cover in December
Westchester, IN

Average cloud cover in December - Westchester, IN
  • Average cloud cover in December: 61

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).

[Resources]

Average visibility in December
Westchester, IN

Average visibility in December - Westchester, IN
  • Average visibility in December: 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).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location