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 the transition to December, Griffin observes a drop in the average high-temperature, moving from a fresh 53.1°F (11.7°C) in November to a frosty 43.5°F (6.4°C). Griffin temperatures generally rest at a low of 31.5°F (-0.3°C) during the December nights.Humidity
In December, the average relative humidity in Griffin is 78%.Rainfall
In Griffin, in December, during 11 rainfall days, 3.03" (77mm) of precipitation is typically accumulated. Throughout the year, in Griffin, there are 167.7 rainfall days, and 38.23" (971mm) of precipitation is accumulated.Snowfall
Months with snowfall in Griffin are January through April, November and December. In Griffin, during December, snow falls for 4.5 days and regularly aggregates up to 1.22" (31mm) of snow. Throughout the year, in Griffin, Indiana, there are 20.5 snowfall days, and 6.06" (154mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 6:50 am and sunset at 4:31 pm. On the last day of December, sunrise is at 7:08 am and sunset at 4:41 pm CST.
Sunshine
In December, the average sunshine in Griffin, Indiana, is 4.6h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 2 during December translates into the following guidance:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Frequently asked questions
Is it cold in Griffin during December?
What is the average humidity in December in Griffin?
How many days does it rain in December in Griffin?
How many days does it snow in December in Griffin?
What is the month with the shortest days in Griffin?
What is the average length of the day in December in Griffin?
When is the sunrise / sunset in December in Griffin?
How long on average sun shines in December in Griffin?
What is the month with the lowest UV index in Griffin?
What is the UV index reading in December in Griffin?
Average temperature in December
Griffin, IN
- Average high temperature in December: 43.5°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (38.1°F).
- Average low temperature in December: 31.5°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in December
Griffin, IN
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Griffin, IN
- Average wind speed in December: 9.4mph
The windiest months (with the highest average wind speed) are January and February (10.1mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity in December
Griffin, IN
- Average humidity in December: 78%
The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is October (69%).
Average rainfall in December
Griffin, IN
- Average rainfall in December: 3.03"
The wettest month (with the highest rainfall) is April (5.2").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in December
Griffin, IN
- Average rainfall days in December: 11 days
The month with the highest number of rainy days is May (19.6 days).
The month with the least rainy days is January (9.8 days).
Average snowfall in December
Griffin, IN
- Average snowfall in December: 1.22"
The month with the highest snowfall is February (1.54").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Griffin, IN
- Average snowfall days in December: 4.5 days
The month with the highest number of snowfall days is January (6.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Griffin, IN
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in December
Griffin, IN
- Average sunshine days in December: 16.3 days
The month with the most sunshine days is October (18.2 days).
The month with the least sunshine days is May (8.8 days).
Average UV index in December
Griffin, IN
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Griffin, IN
- Average cloud cover in December: 51
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in December
Griffin, IN
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Griffin, Indiana, USA
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