December weather forecastJamestown, OK
December
Weather in December
The first month of the winter, December, is still a chilly month in Jamestown, Oklahoma, with an average temperature varying between 47.3°F (8.5°C) and 33.3°F (0.7°C).Temperature
In Jamestown, the average high-temperature in December decreases from a moderate 57.6°F (14.2°C) in November to a chilly 47.3°F (8.5°C). Throughout the month of December, Jamestown witnesses an average temperature of 33.3°F (0.7°C).Humidity
In Jamestown, Oklahoma, the average relative humidity in December is 71%.Rainfall
In Jamestown, in December, it is raining for 6.8 days, with typically 1.02" (26mm) of accumulated precipitation. In Jamestown, during the entire year, the rain falls for 125.4 days and collects up to 23.19" (589mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In December, it is snowing for 1.6 days. Throughout December, 0.24" (6mm) of snow is accumulated. Throughout the year, there are 8.5 snowfall days, and 1.93" (49mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 42min of daylight.On the first day of December, sunrise is at 7:16 am and sunset at 5:07 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 5:17 pm CST.
Sunshine
December has the least sunshine of the year, with an average of 5.6h of sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: A daily high UV index of 2 in December leads to these guidelines:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Jamestown, OK
- Average high temperature in December: 47.3°F
The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (45°F).
- Average low temperature in December: 33.3°F
The month with the highest average low temperature is July (71.4°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).
Average pressure in December
Jamestown, OK
- 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 (29.9"Hg).
Average wind speed in December
Jamestown, OK
- Average wind speed in December: 9.4mph
The windiest month (with the highest average wind speed) is March (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in December
Jamestown, OK
- Average humidity in December: 71%
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is October (68%).
Average rainfall in December
Jamestown, OK
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is May (4.06").
The driest month (with the least rainfall) is November (0.75").
Average rainfall days in December
Jamestown, OK
- Average rainfall days in December: 6.8 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (6.2 days).
Average snowfall in December
Jamestown, OK
- Average snowfall in December: 0.24"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Jamestown, OK
- Average snowfall days in December: 1.6 days
The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Jamestown, OK
- Average daylight in December: 9h and 42min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 5h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in December
Jamestown, OK
- Average sunshine days in December: 21 days
The month with the most sunshine days is November (21.9 days).
The month with the least sunshine days is May (12.9 days).
Average UV index in December
Jamestown, OK
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Jamestown, OK
- Average cloud cover in December: 38
The month with the most cloud cover is March (Cloud cover 42).
The months with the least cloud cover are July and August (Cloud cover 23).
Average visibility in December
Jamestown, 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).
