December weather forecastWalsh, IL
December
Weather in December
December, the first month of the winter in Walsh, is also a frosty month, with an average temperature ranging between max 43.5°F (6.4°C) and min 31.1°F (-0.5°C).Temperature
With the onset of December, Walsh's average high-temperature adjusts, receding from November's fresh 53.6°F (12°C) to a frosty 43.5°F (6.4°C). In December, Walsh experiences a temperature dip to an average of 31.1°F (-0.5°C) at night.Humidity
In December, the average relative humidity is 77%.Rainfall
In Walsh, during December, the rain falls for 6.4 days and regularly aggregates up to 1.06" (27mm) of precipitation. Throughout the year, in Walsh, there are 125.7 rainfall days, and 18.31" (465mm) of precipitation is accumulated.Snowfall
Months with snowfall in Walsh are January through March, October through December. In December, in Walsh, it is snowing for 2.7 days. Throughout December, 0.63" (16mm) of snow is accumulated. Throughout the year, in Walsh, there are 14.8 snowfall days, and 3.94" (100mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 6:57 am and sunset at 4:39 pm. On the last day of December, in Walsh, sunrise is at 7:15 am and sunset at 4:49 pm CST.
Sunshine
In Walsh, Illinois, the average sunshine in December is 4.9h.UV index
The months with the lowest UV index in Walsh are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 2 during December leads to these advisories:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Walsh, IL
- Average high temperature in December: 43.5°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in December: 31.1°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).
Average pressure in December
Walsh, IL
- 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 (29.93"Hg).
Average wind speed in December
Walsh, IL
- Average wind speed in December: 8.7mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).
Average humidity in December
Walsh, IL
- Average humidity in December: 77%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Walsh, IL
- Average rainfall in December: 1.06"
The wettest month (with the highest rainfall) is May (2.2").
The driest month (with the least rainfall) is February (0.94").
Average rainfall days in December
Walsh, IL
- Average rainfall days in December: 6.4 days
The month with the highest number of rainy days is July (15 days).
The month with the least rainy days is January (6.1 days).
Average snowfall in December
Walsh, IL
- Average snowfall in December: 0.63"
The month with the highest snowfall is February (1.38").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in December
Walsh, IL
- Average snowfall days in December: 2.7 days
The month with the highest number of snowfall days is January (4.8 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
Walsh, IL
- Average daylight in December: 9h and 36min
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 54min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in December
Walsh, IL
- Average sunshine days in December: 21.7 days
The month with the most sunshine days is December (21.7 days).
The month with the least sunshine days is July (13 days).
Average UV index in December
Walsh, 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
Walsh, IL
- Average cloud cover in December: 47
The months with the most cloud cover are January and February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in December
Walsh, IL
- 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).
