December weather forecast
New Haven, IN

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Weather in December

December in New Haven, Indiana welcomes the full-blown winter with shorter days and consistent low temperatures. The city becomes a winter wonderland, with mercury readings ranging from 27°F (-2.8°C) to 36.5°F (2.5°C). Snowfall marks its triumphant return, adorning the city in a blanket of white. Amidst the icy streets and cool gusts, the spirit of holiday festivity keeps the city warm. Each snowflake falling from the sky is a reminder of the year coming to a close as New Haven, Indiana transitions into a new year full of promise.

Temperature

As November transitions into December, New Haven sees a drop in the average high-temperature, transitioning from a frosty 47.5°F (8.6°C) to a cold 36.5°F (2.5°C). New Haven reports an average nighttime low-temperature of 27°F (-2.8°C) in December.

Humidity

In New Haven, the average relative humidity in December is 83%.

Rainfall

In New Haven, Indiana, during December, the rain falls for 9.5 days and regularly aggregates up to 1.46" (37mm) of precipitation. In New Haven, during the entire year, the rain falls for 151.9 days and collects up to 23.39" (594mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In December, in New Haven, it is snowing for 10.7 days. Throughout December, 1.85" (47mm) of snow is accumulated. In New Haven, Indiana, during the entire year, snow falls for 50 days and aggregates up to 12.68" (322mm) of snow.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:46 am and sunset at 5:12 pm. On the last day of December, in New Haven, sunrise is at 8:05 am and sunset at 5:21 pm EST.

Sunshine

In December, the average sunshine in New Haven is 3.7h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index value 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 1 during December translates into the following guidance:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
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Frequently asked questions

How cold is December in New Haven?

In New Haven, 36.5°F (2.5°C) is the average high-temperature and 27°F (-2.8°C) is the average low-temperature during December. In July, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, is calculated to be 86°F (30°C).

What is the average humidity in December in New Haven?

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

How much does it rain in New Haven in December?

In December, in New Haven, Indiana, the rain falls for 9.5 days. Throughout December, 1.46" (37mm) of precipitation is accumulated.

How much does it snow in New Haven in December?

In New Haven, during December, snow falls for 10.7 days and regularly aggregates up to 1.85" (47mm) of snow.

What is the month with the shortest days in New Haven?

December has the shortest days of the year in New Haven, with an average of 9h and 18min of daylight.

What is the average length of the day in December in New Haven?

In December, the average day length in New Haven is 9h and 17min.

What time are sunrise and sunset in December in New Haven?

In December, on the first day of the month, sunrise is at 7:46 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 8:05 am and sunset at 5:21 pm EST.

How many hours of sunshine does New Haven have in December?

The average sunshine duration in December in New Haven is 3.7h.

What is the month with the lowest UV index in New Haven?

The month with the lowest UV index is December, with an average maximum UV index of 1.

What is the UV index intensity in December in New Haven?

In December, the average daily maximum UV index in New Haven is 1. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to 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
New Haven, IN

Average temperature in December - New Haven, IN
  • Average high temperature in December: 36.5°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 (30.7°F).

  • Average low temperature in December: 27°F

The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).

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Average pressure in December
New Haven, IN

Average pressure in December - New Haven, IN
  • Average pressure in December: 30.1"Hg

The months with the highest atmospheric pressure are January and November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
New Haven, IN

Average wind speed in December - New Haven, IN
  • Average wind speed in December: 9.7mph

The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).

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Average humidity in December
New Haven, IN

Average humidity in December - New Haven, IN
  • Average humidity in December: 83%

The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is October (75%).

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Average rainfall in December
New Haven, IN

Average rainfall in December - New Haven, IN
  • Average rainfall in December: 1.46"

The wettest month (with the highest rainfall) is April (2.95").
The driest month (with the least rainfall) is February (1.38").

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Average rainfall days in December
New Haven, IN

Average rainfall days in December - New Haven, IN
  • Average rainfall days in December: 9.5 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (6.8 days).

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Average snowfall in December
New Haven, IN

Average snowfall in December - New Haven, IN
  • Average snowfall in December: 1.85"

The month with the highest snowfall is February (3.58").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
New Haven, IN

Average snowfall days in December - New Haven, IN
  • Average snowfall days in December: 10.7 days

The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
New Haven, IN

Average daylight in December / Average sunshine in December - New Haven, IN
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 3h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).

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Average sunshine days in December
New Haven, IN

Average sunshine days in December - New Haven, IN
  • Average sunshine days in December: 13.4 days

The month with the most sunshine days is November (16.1 days).
The month with the least sunshine days is February (10.4 days).

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Average UV index in December
New Haven, IN

Average UV index in December - New Haven, IN
  • Average UV index in December: 1

The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in December
New Haven, IN

Average cloud cover in December - New Haven, IN
  • Average cloud cover in December: 62

The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 33).

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Average visibility in December
New Haven, IN

Average visibility in December - New Haven, IN
  • Average visibility in December: 6mi

The months with the highest visibility are February, March, April, May, June, July, September, October, November and December (6mi).
The months with the lowest visibility are January and August (5mi).

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New Haven, Indiana, USA

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