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
December's onset brings a reduction in the average high-temperature, from a fresh 52.7°F (11.5°C) in November to a wintry 41.5°F (5.3°C). Arrow Rock's temperature in December lowers to a consistent average of 27.7°F (-2.4°C) during the nights.Humidity
In Arrow Rock, the average relative humidity in December is 76%.Rainfall
In Arrow Rock, in December, it is raining for 6.1 days, with typically 1.57" (40mm) of accumulated precipitation. In Arrow Rock, during the entire year, the rain falls for 135.7 days and collects up to 28.11" (714mm) of precipitation.Snowfall
Months with snowfall are January through March, May, October through December. In December, in Arrow Rock, it is snowing for 3.5 days. Throughout December, 1.54" (39mm) of snow is accumulated. Throughout the year, in Arrow Rock, there are 17.6 snowfall days, and 9.06" (230mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 7:12 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 4:59 pm CST.
Sunshine
In December, the average sunshine is 5.1h.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 of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 2 in December converts into the following recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Frequently asked questions
How cold does it get in Arrow Rock in December?
What is the average humidity in December in Arrow Rock?
How much does it rain in Arrow Rock in December?
How many days does it snow in December in Arrow Rock?
What is the month with the shortest days in Arrow Rock?
What is the average length of the day in December in Arrow Rock?
What time are sunrise and sunset in December in Arrow Rock?
How many hours of sunshine does Arrow Rock have in December?
When is the lowest UV index in Arrow Rock?
How high is the UV index in December in Arrow Rock?
Average temperature in December
Arrow Rock, MO
- Average high temperature in December: 41.5°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in December: 27.7°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).
Average pressure in December
Arrow Rock, 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 (29.91"Hg).
Average wind speed in December
Arrow Rock, MO
- Average wind speed in December: 9.2mph
The windiest month (with the highest average wind speed) is March (9.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in December
Arrow Rock, MO
- Average humidity in December: 76%
The months with the highest relative humidity are May and June (78%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Arrow Rock, MO
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days in December
Arrow Rock, MO
- Average rainfall days in December: 6.1 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is January (5.6 days).
Average snowfall in December
Arrow Rock, MO
- Average snowfall in December: 1.54"
The month with the highest snowfall is February (2.95").
The months with the least snowfall are April, June, July, August and September (0").
Average snowfall days in December
Arrow Rock, MO
- Average snowfall days in December: 3.5 days
The month with the highest number of snowfall days is February (5.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Arrow Rock, MO
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in December
Arrow Rock, MO
- Average sunshine days in December: 20 days
The months with the most sunshine days are January and December (20 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in December
Arrow Rock, 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
Arrow Rock, MO
- Average cloud cover in December: 45
The months with the most cloud cover are January, February and March (Cloud cover 48).
The months with the least cloud cover are June, July and August (Cloud cover 28).
Average visibility in December
Arrow Rock, 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).
Arrow Rock, Missouri, USA
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