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 onset of December introduces a moderate change in Greenup's weather, with average high-temperatures falling from November's fresh 50.5°F (10.3°C) to an icy 39.7°F (4.3°C). Greenup, in the month of December, anticipates a consistent average low-temperature of 28.9°F (-1.7°C).Humidity
In December, the average relative humidity is 80%.Rainfall
In December, the rain falls for 6.5 days. Throughout December, 0.79" (20mm) of precipitation is accumulated. In Greenup, during the entire year, the rain falls for 115.9 days and collects up to 11.26" (286mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in Greenup. The month with the most snowfall is December, when snow falls for 4 days and typically aggregates up to 0.47" (12mm) of snow.Daylight
The month with the shortest days in Greenup is December, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 6:53 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 4:39 pm CST.
Sunshine
In Greenup, the average sunshine in December is 4.4h.UV index
The month with the lowest UV index in Greenup is December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.Note: An average maximum UV index of 1 in December leads to these recommendations:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Frequently asked questions
How cold does it get in Greenup in December?
What is the average humidity in December in Greenup?
How much does it rain in Greenup in December?
What is the snowiest month in Greenup?
How many days does it snow in December in Greenup?
What is the month with the shortest days in Greenup?
How many hours of daylight does Greenup have in December?
When are sunrise and sunset in December in Greenup?
How long on average sun shines in December in Greenup?
When is the lowest UV index in Greenup?
What is the UV index reading in December in Greenup?
Average temperature in December
Greenup, IL
- Average high temperature in December: 39.7°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (34.7°F).
- Average low temperature in December: 28.9°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in December
Greenup, IL
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Greenup, IL
- Average wind speed in December: 9.6mph
The windiest months (with the highest average wind speed) are January and February (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.1mph).
Average humidity in December
Greenup, IL
- Average humidity in December: 80%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Greenup, IL
- Average rainfall in December: 0.79"
The wettest month (with the highest rainfall) is April (1.54").
The driest month (with the least rainfall) is February (0.47").
Average rainfall days in December
Greenup, IL
- Average rainfall days in December: 6.5 days
The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is February (6 days).
Average snowfall in December
Greenup, IL
- Average snowfall in December: 0.47"
The month with the highest snowfall is December (0.47").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Greenup, IL
- Average snowfall days in December: 4 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Greenup, IL
- Average daylight in December: 9h and 3min
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 30min).
- Average sunshine in December: 4h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in December
Greenup, IL
- Average sunshine days in December: 20.8 days
The month with the most sunshine days is October (21.2 days).
The month with the least sunshine days is May (12.4 days).
Average UV index in December
Greenup, IL
- 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
Greenup, IL
- Average cloud cover in December: 53
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in December
Greenup, IL
- 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).
Greenup, Illinois, USA
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