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 sea temperature 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 Chesterton, the beginning of December is marked by a lowered average high-temperature, shifting from November's frosty 46.4°F (8°C) to an icy 36.3°F (2.4°C). Chesterton, during December nights, witnesses an average temperature marginally cooler than its daytime highs, at a freezing cold 27.7°F (-2.4°C).Humidity
The average relative humidity in December is 81%.Rainfall
January and December are months with the least rain when the rain falls for 9.4 days and typically aggregates up to 1.14" (29mm) of rain.Snowfall
January through April, November and December are months with snowfall in Chesterton, Indiana. In December, in Chesterton, it is snowing for 10.3 days. Throughout December, 1.77" (45mm) of snow is accumulated. Throughout the year, in Chesterton, there are 47.9 snowfall days, and 10.55" (268mm) of snow is accumulated.Ocean temperature
In Chesterton, Indiana, the average seawater temperature in December is 41°F (5°C).Note: At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.
Daylight
The month with the shortest days in Chesterton is December, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 6:56 am and sunset at 4:18 pm. On the last day of December, sunrise is at 7:14 am and sunset at 4:28 pm CST.
Sunshine
In Chesterton, the average sunshine in December is 3.8h.UV index
The month with the lowest UV index in Chesterton is December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 1 in December interprets into the following recommendations:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Chesterton in December?
What is the average humidity in December in Chesterton?
What is the driest month in Chesterton?
How much does it rain in Chesterton in December?
How much does it snow in Chesterton in December?
What is the ocean temperature in December in Chesterton?
What is the month with the shortest days in Chesterton?
How many hours of daylight does Chesterton have in December?
When are sunrise and sunset in December in Chesterton?
How long on average sun shines in December in Chesterton?
When is the lowest UV index in Chesterton?
What is the UV index intensity in December in Chesterton?
Average temperature in December
Chesterton, IN
- Average high temperature in December: 36.3°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (30.2°F).
- Average low temperature in December: 27.7°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in December
Chesterton, 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
Chesterton, IN
- Average wind speed in December: 11.4mph
The windiest month (with the highest average wind speed) is January (12mph).
The calmest months (with the lowest average wind speed) are July and August (7.3mph).
Average humidity in December
Chesterton, IN
- Average humidity in December: 81%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Chesterton, IN
- Average rainfall in December: 1.14"
The wettest month (with the highest rainfall) is June (3.54").
The driest months (with the least rainfall) are January and December (1.14").
Average rainfall days in December
Chesterton, IN
- Average rainfall days in December: 9.4 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (7.1 days).
Average snowfall in December
Chesterton, IN
- Average snowfall in December: 1.77"
The month with the highest snowfall is January (3.11").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Chesterton, IN
- Average snowfall days in December: 10.3 days
The month with the highest number of snowfall days is January (14.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average sea temperature in December
Chesterton, IN
- Average sea temperature in December: 41°F
The best month for swimming (with the highest average sea temperature) is August (70°F).
The coldest months (with the lowest average sea temperature) are February, March and April (37°F).
Average daylight in December /
Average sunshine in December
Chesterton, 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 24min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in December
Chesterton, IN
- Average sunshine days in December: 13.1 days
The month with the most sunshine days is November (15.4 days).
The month with the least sunshine days is July (10.7 days).
Average UV index in December
Chesterton, 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).
Average cloud cover in December
Chesterton, IN
- Average cloud cover in December: 61
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
Chesterton, 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).
Chesterton, Indiana, USA
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