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 arrival correlates with a reduction in the average high-temperature, down from a chilly 49.6°F (9.8°C) in November to an icy 36.7°F (2.6°C). Maryville records a steady low-temperature average of 23.9°F (-4.5°C) during December.Humidity
The average relative humidity in December in Maryville is 77%.Rainfall
In Maryville, in December, during 5.2 rainfall days, 0.91" (23mm) of precipitation is typically accumulated. Throughout the year, in Maryville, there are 130.5 rainfall days, and 25.79" (655mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Maryville, in December, during 5.6 snowfall days, 1.57" (40mm) of snow is typically accumulated. In Maryville, Missouri, during the entire year, snow falls for 28.1 days and aggregates up to 12.32" (313mm) of snow.Daylight
The month with the shortest days in Maryville is December, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:23 am and sunset at 4:53 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:03 pm CST.
Sunshine
The average sunshine in December is 5.2h.UV index
In December, the average daily maximum UV index in Maryville, Missouri, is 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 2 during December translates into these guidelines:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Maryville?
What is the average humidity in December in Maryville?
How many days does it rain in December in Maryville?
How many days does it snow in December in Maryville?
What is the month with the shortest days in Maryville?
How many hours of daylight does Maryville have in December?
What time are sunrise and sunset in December in Maryville?
How long on average sun shines in December in Maryville?
How high is the UV index in December in Maryville?
Average temperature in December
Maryville, MO
- Average high temperature in December: 36.7°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in December: 23.9°F
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in December
Maryville, MO
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Maryville, MO
- Average wind speed in December: 9.4mph
The windiest month (with the highest average wind speed) is March (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity in December
Maryville, MO
- Average humidity in December: 77%
The month with the highest relative humidity is June (80%).
The month with the lowest relative humidity is October (69%).
Average rainfall in December
Maryville, MO
- Average rainfall in December: 0.91"
The wettest month (with the highest rainfall) is June (4.09").
The driest month (with the least rainfall) is February (0.83").
Average rainfall days in December
Maryville, MO
- Average rainfall days in December: 5.2 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is February (4.4 days).
Average snowfall in December
Maryville, MO
- Average snowfall in December: 1.57"
The month with the highest snowfall is January (3.31").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Maryville, MO
- Average snowfall days in December: 5.6 days
The month with the highest number of snowfall days is January (8.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Maryville, MO
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in December
Maryville, MO
- Average sunshine days in December: 20.7 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (10.6 days).
Average UV index in December
Maryville, MO
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Maryville, MO
- Average cloud cover in December: 44
The months with the most cloud cover are January and March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in December
Maryville, 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).
Maryville, Missouri, USA
Weather forecast for your location
2. Allow the app to use your location