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
Onset of December comes with a temperature decline, the average high falling from a mild 59.5°F (15.3°C) in November to a frosty 48.7°F (9.3°C). The nights of December anticipate an average low-temperature of 33.1°F (0.6°C).Humidity
The average relative humidity in December is 66%.Rainfall
December is the month with the least rainfall in Stillwater. Rain falls for 5.8 days and accumulates 0.98" (25mm) of precipitation.Snowfall
Months with snowfall in Stillwater, Oklahoma, are January through March, November and December. In Stillwater, during December, snow falls for 1.4 days and regularly aggregates up to 0.43" (11mm) of snow. Throughout the year, in Stillwater, there are 7.7 snowfall days, and 3.23" (82mm) of snow is accumulated.Daylight
December has the shortest days of the year in Stillwater, with an average of 9h and 48min of daylight.On the first day of December, sunrise is at 7:21 am and sunset at 5:13 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 5:24 pm CST.
Sunshine
The month with the least sunshine is December, with an average of 6.1h of sunshine.UV index
December is the month with the lowest UV index in Stillwater, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 2 in December translates into this advice:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. To guard against the harmful effects of the Sun, minimize exposure during midday. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Frequently asked questions
What are December temperatures in Stillwater?
What is the average humidity in December in Stillwater?
What is the driest month in Stillwater?
How much does it rain in Stillwater in December?
How much does it snow in Stillwater in December?
What is the month with the shortest days in Stillwater?
What is the average length of the day in December in Stillwater?
When are sunrise and sunset in December in Stillwater?
What is the month with the least sunshine in Stillwater?
How long on average sun shines in December in Stillwater?
What is the month with the lowest UV index in Stillwater?
What is the UV index reading in December in Stillwater?
Average temperature in December
Stillwater, OK
- Average high temperature in December: 48.7°F
The warmest month (with the highest average high temperature) is July (93°F).
The month with the lowest average high temperature is January (47.5°F).
- Average low temperature in December: 33.1°F
The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in December
Stillwater, 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 (29.87"Hg).
Average wind speed in December
Stillwater, OK
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is April (11.5mph).
The calmest month (with the lowest average wind speed) is August (8.2mph).
Average humidity in December
Stillwater, OK
- Average humidity in December: 66%
The month with the highest relative humidity is May (75%).
The month with the lowest relative humidity is August (62%).
Average rainfall in December
Stillwater, OK
- Average rainfall in December: 0.98"
The wettest month (with the highest rainfall) is May (4.25").
The driest month (with the least rainfall) is December (0.98").
Average rainfall days in December
Stillwater, OK
- Average rainfall days in December: 5.8 days
The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in December
Stillwater, OK
- Average snowfall in December: 0.43"
The month with the highest snowfall is February (1.42").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Stillwater, OK
- Average snowfall days in December: 1.4 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Stillwater, OK
- Average daylight in December: 9h and 5min
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 48min).
- Average sunshine in December: 6h and 1min
The month with the most sunshine is August (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days in December
Stillwater, OK
- Average sunshine days in December: 22.6 days
The month with the most sunshine days is January (22.9 days).
The month with the least sunshine days is May (13.7 days).
Average UV index in December
Stillwater, 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
Stillwater, OK
- Average cloud cover in December: 32
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in December
Stillwater, 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).
Stillwater, Oklahoma, USA
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