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 December, the average high-temperature goes from a frosty 46.8°F (8.2°C) in November to an icy 36.1°F (2.3°C). Night temperatures during December stabilize at an average of 27.5°F (-2.5°C), closely mirroring the daytime temperatures.Humidity
In December, the average relative humidity is 81%.Rainfall
In December, the rain falls for 9.6 days. Throughout December, 1.22" (31mm) of precipitation is accumulated. In South Haven, during the entire year, the rain falls for 157.4 days and collects up to 23.9" (607mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In South Haven, in December, during 10.4 snowfall days, 2.05" (52mm) of snow is typically accumulated. In South Haven, during the entire year, snow falls for 47 days and aggregates up to 10.75" (273mm) of snow.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 6:56 am and sunset at 4:19 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 4:28 pm CST.
Sunshine
In December, the average sunshine is 3.9h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average maximum UV index of 1 in December leads to these recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
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 much 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 is the sunrise / sunset in December?
How many hours of sunshine does South Haven have in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
South Haven, IN
- Average high temperature in December: 36.1°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (30.2°F).
- Average low temperature in December: 27.5°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in December
South Haven, IN
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
South Haven, IN
- Average wind speed in December: 10.7mph
The windiest month (with the highest average wind speed) is January (11.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).
Average humidity in December
South Haven, IN
- Average humidity in December: 81%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
South Haven, IN
- Average rainfall in December: 1.22"
The wettest month (with the highest rainfall) is June (3.19").
The driest month (with the least rainfall) is February (1.18").
Average rainfall days in December
South Haven, IN
- Average rainfall days in December: 9.6 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (7.2 days).
Average snowfall in December
South Haven, IN
- Average snowfall in December: 2.05"
The month with the highest snowfall is January (3.27").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
South Haven, IN
- Average snowfall days in December: 10.4 days
The month with the highest number of snowfall days is January (13.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
South Haven, IN
- Average daylight in December: 9h and 1min
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 12min).
- Average sunshine in December: 3h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
South Haven, IN
- Average sunshine days in December: 13.2 days
The month with the most sunshine days is November (15.7 days).
The months with the least sunshine days are June and August (10.4 days).
Average UV index in December
South Haven, IN
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
South Haven, IN
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
South Haven, IN
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
South Haven, Indiana, USA
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