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 onset of December brings a small change in high-temperatures, falling from a fresh 53.4°F (11.9°C) in November to a wintry 42.6°F (5.9°C). Kirkwood observes an average nighttime temperature of 30.6°F (-0.8°C) during December.Humidity
In December, the average relative humidity is 76%.Rainfall
In December, the rain falls for 7.5 days. Throughout December, 2.05" (52mm) of precipitation is accumulated. In Kirkwood, during the entire year, the rain falls for 144.8 days and collects up to 30.59" (777mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Kirkwood. In December, in Kirkwood, it is snowing for 3.1 days. Throughout December, 1.85" (47mm) of snow is accumulated. In Kirkwood, during the entire year, snow falls for 16.2 days and aggregates up to 8.19" (208mm) of snow.Daylight
The month with the shortest days in Kirkwood is December, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 7:01 am and sunset at 4:40 pm. On the last day of December, sunrise is at 7:19 am and sunset at 4:50 pm CST.
Sunshine
In December, the average sunshine is 4.9h.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 value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold in Kirkwood?
What is the average humidity in December in Kirkwood?
How much does it rain in Kirkwood in December?
How much does it snow in Kirkwood in December?
What is the month with the shortest days in Kirkwood?
What is the average length of the day in December in Kirkwood?
When is the sunrise / sunset in December in Kirkwood?
How many hours of sunshine does Kirkwood have in December?
When is the lowest UV index in Kirkwood?
What is the UV index reading in December in Kirkwood?
Average temperature in December
Kirkwood, MO
- Average high temperature in December: 42.6°F
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in December: 30.6°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in December
Kirkwood, 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
Kirkwood, MO
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in December
Kirkwood, MO
- Average humidity in December: 76%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Kirkwood, MO
- Average rainfall in December: 2.05"
The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is February (1.69").
Average rainfall days in December
Kirkwood, MO
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (6.5 days).
Average snowfall in December
Kirkwood, MO
- Average snowfall in December: 1.85"
The month with the highest snowfall is February (2.6").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Kirkwood, MO
- Average snowfall days in December: 3.1 days
The month with the highest number of snowfall days is February (5.2 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Kirkwood, MO
- Average daylight in December: 9h and 3min
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: 4h and 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in December
Kirkwood, MO
- Average sunshine days in December: 19.9 days
The month with the most sunshine days is January (21 days).
The month with the least sunshine days is June (11.2 days).
Average UV index in December
Kirkwood, 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
Kirkwood, MO
- Average cloud cover in December: 48
The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in December
Kirkwood, 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).
Kirkwood, Missouri, USA
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