December weather forecastPhilo, IL
December
Weather in December
December, the first month of the winter in Philo, is also an icy month, with an average temperature varying between 27.7°F (-2.4°C) and 37.8°F (3.2°C).Temperature
As November transitions to December, the average high-temperature falls from a chilly 49.1°F (9.5°C) to a wintry 37.8°F (3.2°C). Philo experiences a consistent average temperature of 27.7°F (-2.4°C) throughout the nights in December.Humidity
In Philo, the average relative humidity in December is 80%.Rainfall
In Philo, during December, the rain falls for 8.1 days and regularly aggregates up to 1.3" (33mm) of precipitation. Throughout the year, in Philo, there are 143.2 rainfall days, and 23.11" (587mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall in Philo, Illinois. In Philo, during December, snow falls for 6.8 days and regularly aggregates up to 1.69" (43mm) of snow. Throughout the year, there are 30.6 snowfall days, and 8.54" (217mm) of snow is accumulated.Daylight
December has the shortest days of the year in Philo, with an average of 9h and 24min of daylight.On the first day of December in Philo, sunrise is at 6:55 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 4:37 pm CST.
Sunshine
In December, the average sunshine is 4.5h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high UV index of 2 in December translates into the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Stay sun-safe with clothing that is both closely woven and worn loosely. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Philo, IL
- Average high temperature in December: 37.8°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (32.2°F).
- Average low temperature in December: 27.7°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in December
Philo, IL
- 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 (29.92"Hg).
Average wind speed in December
Philo, IL
- Average wind speed in December: 10.2mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.4mph).
Average humidity in December
Philo, IL
- Average humidity in December: 80%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Philo, IL
- Average rainfall in December: 1.3"
The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is September (1.18").
Average rainfall days in December
Philo, IL
- Average rainfall days in December: 8.1 days
The months with the highest number of rainy days are May and July (16.8 days).
The month with the least rainy days is February (6.2 days).
Average snowfall in December
Philo, IL
- Average snowfall in December: 1.69"
The month with the highest snowfall is February (2.56").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Philo, IL
- Average snowfall days in December: 6.8 days
The month with the highest number of snowfall days is January (9.4 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
Philo, IL
- Average daylight in December: 9h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 4h and 30min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Philo, IL
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in December
Philo, IL
- Average UV index in December: 2
The months with the highest UV index are 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
Philo, IL
- Average cloud cover in December: 54
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are June, August and September (Cloud cover 32).
Average visibility in December
Philo, 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).
