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
December's arrival comes with a decrease in the average high-temperature, moving from a frosty 48°F (8.9°C) in November to a cold 36.9°F (2.7°C). Throughout the month of December, the average temperature dips to a freezing cold 27°F (-2.8°C) at night.Humidity
In December, the average relative humidity is 81%.Rainfall
In Chalmers, Indiana, in December, it is raining for 4.6 days, with typically 0.47" (12mm) of accumulated precipitation. In Chalmers, during the entire year, the rain falls for 95.3 days and collects up to 7.64" (194mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In December, in Chalmers, it is snowing for 4.5 days. Throughout December, 0.39" (10mm) of snow is accumulated. In Chalmers, during the entire year, snow falls for 23.1 days and aggregates up to 2.44" (62mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:52 am and sunset at 5:20 pm. On the last day of the month, sunrise is at 8:11 am and sunset at 5:30 pm EST.
Sunshine
In December, the average sunshine is 4.3h.UV index
December is the month with the lowest UV index in Chalmers, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: In December, the maximum UV index of 1 suggests this advice:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
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 Chalmers in December?
How many days 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 long on average sun shines in December?
When is the lowest UV index in Chalmers?
What is the UV index reading in December?
Average temperature in December
Chalmers, IN
- Average high temperature in December: 36.9°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 (31.1°F).
- Average low temperature in December: 27°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).
Average pressure in December
Chalmers, IN
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Chalmers, IN
- Average wind speed in December: 9.5mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in December
Chalmers, IN
- Average humidity in December: 81%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Chalmers, IN
- Average rainfall in December: 0.47"
The wettest month (with the highest rainfall) is May (0.98").
The driest month (with the least rainfall) is September (0.35").
Average rainfall days in December
Chalmers, IN
- Average rainfall days in December: 4.6 days
The month with the highest number of rainy days is May (12.3 days).
The month with the least rainy days is February (3.9 days).
Average snowfall in December
Chalmers, IN
- Average snowfall in December: 0.39"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Chalmers, IN
- Average snowfall days in December: 4.5 days
The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Chalmers, IN
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 4h and 2min
The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Chalmers, IN
- Average sunshine days in December: 23.6 days
The month with the most sunshine days is December (23.6 days).
The month with the least sunshine days is May (15.6 days).
Average UV index in December
Chalmers, IN
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Chalmers, IN
- Average cloud cover in December: 56
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are June and August (Cloud cover 33).
Average visibility in December
Chalmers, IN
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Chalmers, Indiana, USA
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