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
The commencement of December indicates a shift in the average high-temperature, receding from November's chilly 47.3°F (8.5°C) to a wintry 36.1°F (2.3°C). In December, Grabill's temperature tends to fall to an average low of 26.8°F (-2.9°C) during the night.Humidity
In December, the average relative humidity is 83%.Rainfall
In Grabill, in December, it is raining for 9.2 days, with typically 0.94" (24mm) of accumulated precipitation. In Grabill, during the entire year, the rain falls for 140.8 days and collects up to 16.22" (412mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Grabill, Indiana, in December, snow falls for 9.5 days, with typically accumulated 1.1" (28mm) of snow. Throughout the year, in Grabill, there are 45.1 snowfall days, and 7.8" (198mm) of snow is accumulated.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 5:11 pm. On the last day of December, in Grabill, sunrise is at 8:05 am and sunset at 5:21 pm EST.
Sunshine
In December, the average sunshine is 3.8h.UV index
December is the month with the lowest UV index in Grabill, Indiana, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 1 in December translates into this advice:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Direct Sun exposure should be minimized especially during midday when radiation is most intense. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Frequently asked questions
How cold is December in Grabill?
What is the average humidity in December in Grabill?
How many days does it rain in December in Grabill?
How many days does it snow in December in Grabill?
What is the month with the shortest days in Grabill?
What is the average length of the day in December in Grabill?
What time are sunrise and sunset in December in Grabill?
How many hours of sunshine does Grabill have in December?
When is the lowest UV index in Grabill?
What is the UV index intensity in December in Grabill?
Average temperature in December
Grabill, IN
- Average high temperature in December: 36.1°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 (30.6°F).
- Average low temperature in December: 26.8°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°F).
Average pressure in December
Grabill, 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
Grabill, IN
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in December
Grabill, 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
Grabill, IN
- Average rainfall in December: 0.94"
The wettest month (with the highest rainfall) is May (2.09").
The driest month (with the least rainfall) is February (0.87").
Average rainfall days in December
Grabill, IN
- Average rainfall days in December: 9.2 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (6.5 days).
Average snowfall in December
Grabill, IN
- Average snowfall in December: 1.1"
The month with the highest snowfall is February (2.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Grabill, IN
- Average snowfall days in December: 9.5 days
The month with the highest number of snowfall days is January (12.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Grabill, 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 5min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in December
Grabill, IN
- Average sunshine days in December: 15.6 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is June (11.5 days).
Average UV index in December
Grabill, 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
Grabill, IN
- Average cloud cover in December: 61
The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in December
Grabill, IN
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
Grabill, Indiana, USA
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