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 start of December signals a decrease in the average high-temperature, transitioning from a chilly 49.3°F (9.6°C) in November to a wintry 38.3°F (3.5°C). An average low-temperature of 28.4°F (-2°C) is observed during December nights.Humidity
The most humid month in Greenfield is December, with an average relative humidity of 83%.Rainfall
In Greenfield, in December, it is raining for 11.2 days, with typically 2.28" (58mm) of accumulated precipitation. In Greenfield, during the entire year, the rain falls for 170 days and collects up to 32.13" (816mm) of precipitation.Snowfall
January through April, October through December are months with snowfall in Greenfield. December is the month with the most snowfall. Snow falls for 9.5 days and accumulates 3.27" (83mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:45 am and sunset at 5:18 pm. On the last day of December, sunrise is at 8:04 am and sunset at 5:28 pm EST.
Sunshine
The average sunshine in December is 4.2h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index. 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 maximum UV index of 1 during December translates into these guidelines:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. To guard against the harmful effects of the Sun, minimize exposure during midday. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Greenfield?
What is the most humid month in Greenfield?
What is the average humidity in December in Greenfield?
How many days does it rain in December in Greenfield?
What is the snowiest month in Greenfield?
How much does it snow in Greenfield in December?
What is the month with the shortest days in Greenfield?
How many hours of daylight does Greenfield have in December?
When are sunrise and sunset in December in Greenfield?
How long on average sun shines in December in Greenfield?
When is the lowest UV index in Greenfield?
What is the UV index reading in December in Greenfield?
Average temperature in December
Greenfield, IN
- Average high temperature in December: 38.3°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (33.1°F).
- Average low temperature in December: 28.4°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (21°F).
Average pressure in December
Greenfield, IN
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Greenfield, IN
- Average wind speed in December: 9.2mph
The windiest months (with the highest average wind speed) are January and February (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in December
Greenfield, IN
- Average humidity in December: 83%
The month with the highest relative humidity is December (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Greenfield, IN
- Average rainfall in December: 2.28"
The wettest month (with the highest rainfall) is May (3.82").
The driest month (with the least rainfall) is February (1.93").
Average rainfall days in December
Greenfield, IN
- Average rainfall days in December: 11.2 days
The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is February (8.7 days).
Average snowfall in December
Greenfield, IN
- Average snowfall in December: 3.27"
The month with the highest snowfall is December (3.27").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Greenfield, IN
- Average snowfall days in December: 9.5 days
The month with the highest number of snowfall days is January (11.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Greenfield, IN
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Greenfield, IN
- Average sunshine days in December: 13.3 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is May (9.9 days).
Average UV index in December
Greenfield, IN
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Greenfield, IN
- Average cloud cover in December: 57
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Greenfield, 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).
Greenfield, Indiana, USA
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