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 shift from November to December involves a decrease in the average high-temperature, from a mild 55.8°F (13.2°C) to a chilly 45°F (7.2°C). December generally records an average low-temperature of 31.1°F (-0.5°C).Humidity
The average relative humidity in December is 73%.Rainfall
In December, the rain falls for 6.9 days. Throughout December, 1.69" (43mm) of precipitation is accumulated. In Opolis, during the entire year, the rain falls for 143.6 days and collects up to 32.83" (834mm) of precipitation.Snowfall
Months with snowfall are January through May, November and December. In Opolis, during December, snow falls for 2.3 days and regularly aggregates up to 0.87" (22mm) of snow. In Opolis, during the entire year, snow falls for 14.1 days and aggregates up to 5.87" (149mm) of snow.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:14 am and sunset at 5:00 pm. On the last day of December, sunrise is at 7:32 am and sunset at 5:11 pm CST.
Sunshine
In Opolis, the average sunshine in December is 5.6h.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 estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: A daily high UV index of 2 in December leads to these guidelines:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Opolis have in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Opolis, KS
- Average high temperature in December: 45°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 (42.1°F).
- Average low temperature in December: 31.1°F
The month with the highest average low temperature is July (70.2°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure in December
Opolis, KS
- 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 (29.91"Hg).
Average wind speed in December
Opolis, KS
- Average wind speed in December: 9.9mph
The windiest month (with the highest average wind speed) is March (11.1mph).
The calmest months (with the lowest average wind speed) are July and August (7.2mph).
Average humidity in December
Opolis, KS
- Average humidity in December: 73%
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are October and November (71%).
Average rainfall in December
Opolis, KS
- Average rainfall in December: 1.69"
The wettest month (with the highest rainfall) is May (5.67").
The driest month (with the least rainfall) is January (1.46").
Average rainfall days in December
Opolis, KS
- Average rainfall days in December: 6.9 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is December (6.9 days).
Average snowfall in December
Opolis, KS
- Average snowfall in December: 0.87"
The month with the highest snowfall is February (2.4").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Opolis, KS
- Average snowfall days in December: 2.3 days
The month with the highest number of snowfall days is January (4.5 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Opolis, KS
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 5h and 4min
The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in December
Opolis, KS
- Average sunshine days in December: 20.6 days
The month with the most sunshine days is December (20.6 days).
The month with the least sunshine days is May (12.5 days).
Average UV index in December
Opolis, KS
- Average UV index in December: 2
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in December
Opolis, KS
- Average cloud cover in December: 39
The month with the most cloud cover is March (Cloud cover 45).
The months with the least cloud cover are June, July and August (Cloud cover 25).
Average visibility in December
Opolis, KS
- 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).
Opolis, Kansas, USA
Weather forecast for your location
2. Allow the app to use your location