December weather forecastBarnett, MO
December
Weather in December
The first month of the winter, December, is still a chilly month in Barnett, Missouri, with an average temperature fluctuating between 43.2°F (6.2°C) and 29.3°F (-1.5°C).Temperature
December comes with a drop in the average high-temperature, falling from November's fresh 53.8°F (12.1°C) to a frosty 43.2°F (6.2°C). In the month of December, Barnett records a consistent average low-temperature of 29.3°F (-1.5°C).Humidity
In December, the average relative humidity in Barnett is 76%.Rainfall
In Barnett, in December, during 6.7 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. Throughout the year, in Barnett, there are 136.9 rainfall days, and 26.02" (661mm) of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall in Barnett. In Barnett, in December, during 4.9 snowfall days, 1.42" (36mm) of snow is typically accumulated. In Barnett, during the entire year, snow falls for 23.1 days and aggregates up to 8.03" (204mm) of snow.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of December in Barnett, sunrise is at 7:09 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 5:00 pm CST.
Sunshine
In Barnett, the average sunshine in December is 5.1h.UV index
The months with the lowest UV index 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 threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A typical high UV index of 2 in December suggests the following recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Barnett, MO
- Average high temperature in December: 43.2°F
The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in December: 29.3°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in December
Barnett, MO
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Barnett, MO
- Average wind speed in December: 8.6mph
The windiest months (with the highest average wind speed) are January and March (8.9mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in December
Barnett, MO
- Average humidity in December: 76%
The month with the highest relative humidity is May (77%).
The months with the lowest relative humidity are August and October (73%).
Average rainfall in December
Barnett, MO
- Average rainfall in December: 1.42"
The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days in December
Barnett, MO
- Average rainfall days in December: 6.7 days
The month with the highest number of rainy days is May (16.3 days).
The months with the least rainy days are January and December (6.7 days).
Average snowfall in December
Barnett, MO
- Average snowfall in December: 1.42"
The month with the highest snowfall is February (2.8").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Barnett, MO
- Average snowfall days in December: 4.9 days
The month with the highest number of snowfall days is February (7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Barnett, MO
- Average daylight in December: 9h and 30min
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 30min).
- Average sunshine in December: 5h and 6min
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: 4h and 54min).
Average sunshine days in December
Barnett, MO
- Average sunshine days in December: 19.6 days
The month with the most sunshine days is December (19.6 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in December
Barnett, MO
- 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
Barnett, MO
- Average cloud cover in December: 45
The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
Barnett, MO
- 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).





