December weather forecastJumbo, OK
December
Weather in December
December, the first month of the winter in Jumbo, is still a cool month, with temperature in the range of an average high of 51.8°F (11°C) and an average low of 37.4°F (3°C).Temperature
As November transitions into December, Jumbo sees a drop in the average high-temperature, transitioning from a comfortable 61.7°F (16.5°C) to a fresh 51.8°F (11°C). Jumbo experiences an average low-temperature reading of 37.4°F (3°C) throughout December.Humidity
The average relative humidity in December is 73%.Rainfall
In Jumbo, in December, during 7.8 rainfall days, 0.94" (24mm) of precipitation is typically accumulated. In Jumbo, during the entire year, the rain falls for 125.9 days and collects up to 19.49" (495mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Jumbo, in December, during 0.5 snowfall days, 0.08" (2mm) of snow is typically accumulated. In Jumbo, during the entire year, snow falls for 3.8 days and aggregates up to 1.22" (31mm) of snow.Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year in Jumbo.On the first day of the month, sunrise is at 7:11 am and sunset at 5:12 pm. On the last day of December, sunrise is at 7:29 am and sunset at 5:23 pm CST.
Sunshine
The month with the least sunshine is December, with an average of 5.5h of sunshine.UV index
The month with the lowest UV index is December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: In December, an average UV index of 2 transforms into the following instructions:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. To protect against the Sun's most potent rays, avoid direct exposure around midday. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. 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
Average temperature in December
Jumbo, OK
- Average high temperature in December: 51.8°F
The warmest month (with the highest average high temperature) is August (93.4°F).
The month with the lowest average high temperature is January (50.5°F).
- Average low temperature in December: 37.4°F
The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (34.5°F).
Average pressure in December
Jumbo, OK
- 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
Jumbo, OK
- Average wind speed in December: 8.1mph
The windiest months (with the highest average wind speed) are March and April (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in December
Jumbo, OK
- Average humidity in December: 73%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is August (65%).
Average rainfall in December
Jumbo, OK
- Average rainfall in December: 0.94"
The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is January (0.83").
Average rainfall days in December
Jumbo, OK
- Average rainfall days in December: 7.8 days
The month with the highest number of rainy days is May (13.3 days).
The month with the least rainy days is January (6.9 days).
Average snowfall in December
Jumbo, OK
- Average snowfall in December: 0.08"
The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Jumbo, OK
- Average snowfall days in December: 0.5 days
The month with the highest number of snowfall days is February (1.7 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Jumbo, OK
- Average daylight in December: 9h and 54min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 5h and 30min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in December
Jumbo, OK
- Average sunshine days in December: 20.5 days
The month with the most sunshine days is January (21.2 days).
The month with the least sunshine days is May (14.2 days).
Average UV index in December
Jumbo, OK
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Jumbo, OK
- Average cloud cover in December: 39
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in December
Jumbo, OK
- 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).





