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
In New Haven, entering December brings a temperature decrement, reducing from November's frosty 47.5°F (8.6°C) to a wintry 36.5°F (2.5°C). Throughout the month of December, New Haven reports a steady low-temperature average of 27°F (-2.8°C).Humidity
In New Haven, Indiana, the average relative humidity in December is 83%.Rainfall
In New Haven, 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 New Haven, in December, during 10.7 snowfall days, 1.85" (47mm) of snow is typically accumulated. In New Haven, during the entire year, snow falls for 50 days and aggregates up to 12.68" (322mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.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, sunrise is at 8:05 am and sunset at 5:21 pm EST.
Sunshine
In December, the average sunshine is 3.7h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 1 during December translates into the following directions:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How many hours of sunshine does New Haven have in December?
When is the lowest UV index?
What is the UV index intensity in December?
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).
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).
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).
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%).
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").
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).
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").
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).
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).
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).
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).
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).
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).
New Haven, Indiana, USA
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