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 shift from November to December involves a decrease in the average high-temperature, dropping from a chilly 47.8°F (8.8°C) to a cold 36.5°F (2.5°C). In the month of December, the temperature generally rests at an average low of 26.4°F (-3.1°C).Humidity
In December, the average relative humidity is 81%.Rainfall
In Martinton, in December, it is raining for 7.3 days, with typically 1.02" (26mm) of accumulated precipitation. Throughout the year, in Martinton, there are 136.7 rainfall days, and 19.72" (501mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In Martinton, during December, snow falls for 6.5 days and regularly aggregates up to 1.26" (32mm) of snow. In Martinton, Illinois, during the entire year, snow falls for 32.9 days and aggregates up to 9.17" (233mm) of snow.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year in Martinton.On the first day of December, sunrise is at 6:56 am and sunset at 4:23 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:33 pm CST.
Sunshine
In December, the average sunshine is 4.3h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index, 1 in December, converts into the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Frequently asked questions
How cold is it in Martinton in December?
What is the average humidity in December in Martinton?
How many days does it rain in December in Martinton?
How much does it snow in Martinton in December?
What is the month with the shortest days in Martinton?
How many hours of daylight does Martinton have in December?
When is the sunrise / sunset in December in Martinton?
How long on average sun shines in December in Martinton?
What is the month with the lowest UV index in Martinton?
What is the UV index reading in December in Martinton?
Average temperature in December
Martinton, IL
- Average high temperature in December: 36.5°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in December: 26.4°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in December
Martinton, IL
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Martinton, IL
- Average wind speed in December: 9.7mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in December
Martinton, IL
- Average humidity in December: 81%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Martinton, IL
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is February (0.98").
Average rainfall days in December
Martinton, IL
- Average rainfall days in December: 7.3 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (6.2 days).
Average snowfall in December
Martinton, IL
- Average snowfall in December: 1.26"
The month with the highest snowfall is January (2.56").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Martinton, IL
- Average snowfall days in December: 6.5 days
The month with the highest number of snowfall days is January (10.5 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
Martinton, IL
- 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: 4h and 2min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Martinton, IL
- Average sunshine days in December: 18.3 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (10.1 days).
Average UV index in December
Martinton, IL
- 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
Martinton, IL
- Average cloud cover in December: 56
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 33).
Average visibility in December
Martinton, IL
- 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).
Martinton, Illinois, USA
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