December weather forecastThornfield, MO
December
Weather in December
The first month of the winter, December, is also a frosty month in Thornfield, Missouri, with an average temperature ranging between max 47.3°F (8.5°C) and min 32.2°F (0.1°C).Temperature
The shift to December brings a decrease in the average high-temperature, falling from a refreshing 56.5°F (13.6°C) in November to a frosty 47.3°F (8.5°C). Thornfield experiences an average temperature drop to an icy 32.2°F (0.1°C) during December nights.Humidity
In December, the average relative humidity in Thornfield, Missouri, is 76%.Rainfall
In Thornfield, in December, it is raining for 7.8 days, with typically 1.93" (49mm) of accumulated precipitation. In Thornfield, during the entire year, the rain falls for 136.4 days and collects up to 30.98" (787mm) of precipitation.Snowfall
Months with snowfall in Thornfield are January through March, November and December. In Thornfield, in December, during 1.9 snowfall days, 1.1" (28mm) of snow is typically accumulated. In Thornfield, during the entire year, snow falls for 12.7 days and aggregates up to 5.35" (136mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 7:05 am and sunset at 4:54 pm. On the last day of December, sunrise is at 7:22 am and sunset at 5:04 pm CST.
Sunshine
In Thornfield, the average sunshine in December is 5.3h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: A daily maximum UV index of 2 in December translates into the following instructions:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. It's recommended to limit sun exposure when its radiation is at its peak during midday. Opt for tightly woven and loose clothing to enhance protection from the Sun. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Thornfield, MO
- Average high temperature in December: 47.3°F
The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (44.2°F).
- Average low temperature in December: 32.2°F
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (28.2°F).
Average pressure in December
Thornfield, MO
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Thornfield, MO
- Average wind speed in December: 6.3mph
The windiest months (with the highest average wind speed) are January, February, March and April (7mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in December
Thornfield, MO
- Average humidity in December: 76%
The month with the highest relative humidity is March (79%).
The months with the lowest relative humidity are July, August and October (73%).
Average rainfall in December
Thornfield, MO
- Average rainfall in December: 1.93"
The wettest month (with the highest rainfall) is May (4.33").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in December
Thornfield, MO
- Average rainfall days in December: 7.8 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in December
Thornfield, MO
- Average snowfall in December: 1.1"
The month with the highest snowfall is February (1.77").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Thornfield, MO
- Average snowfall days in December: 1.9 days
The month with the highest number of snowfall days is January (4.4 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
Thornfield, MO
- Average daylight in December: 9h and 42min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 5h and 18min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 5h and 6min).
Average sunshine days in December
Thornfield, MO
- Average sunshine days in December: 20.4 days
The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is May (12.7 days).
Average UV index in December
Thornfield, MO
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in December
Thornfield, MO
- Average cloud cover in December: 44
The month with the most cloud cover is March (Cloud cover 49).
The months with the least cloud cover are June and July (Cloud cover 30).
Average visibility in December
Thornfield, MO
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, October, November and December (6mi).
The months with the lowest visibility are April, May, June, July, August and September (5mi).





