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 onset brings a slight change in high-temperatures, falling from a moderate 60.1°F (15.6°C) in November to a cool 50.4°F (10.2°C). December nights in Spiro experience a consistent temperature drop to an icy 35.2°F (1.8°C).Humidity
In December, the average relative humidity is 74%.Rainfall
In Spiro, in December, it is raining for 9.9 days, with typically 2.68" (68mm) of accumulated precipitation. In Spiro, during the entire year, the rain falls for 147.8 days and collects up to 34.76" (883mm) of precipitation.Snowfall
Months with snowfall in Spiro are January through March, November and December. In December, in Spiro, it is snowing for 0.6 days. Throughout December, 0.35" (9mm) of snow is accumulated. Throughout the year, there are 5.8 snowfall days, and 2.87" (73mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 48min of daylight.On the first day of the month, sunrise is at 7:09 am and sunset at 5:06 pm. On the last day of December, sunrise is at 7:26 am and sunset at 5:16 pm CST.
Sunshine
In Spiro, Oklahoma, the average sunshine in December is 5.6h.UV index
With an average maximum UV index of 2, December is the month with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 2 during December translates into the following directions:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. To guard against the harmful effects of the Sun, minimize exposure during midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Frequently asked questions
What is the temperature in December in Spiro?
What is the average humidity in December in Spiro?
How much does it rain in Spiro in December?
How many days does it snow in December in Spiro?
What is the month with the shortest days in Spiro?
What is the average length of the day in December in Spiro?
When are sunrise and sunset in December in Spiro?
How long on average sun shines in December in Spiro?
What is the month with the lowest UV index in Spiro?
What is the UV index intensity in December in Spiro?
Average temperature in December
Spiro, OK
- Average high temperature in December: 50.4°F
The warmest month (with the highest average high temperature) is July (93°F).
The month with the lowest average high temperature is January (48°F).
- Average low temperature in December: 35.2°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (31.8°F).
Average pressure in December
Spiro, 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 (29.93"Hg).
Average wind speed in December
Spiro, OK
- Average wind speed in December: 6.6mph
The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in December
Spiro, OK
- Average humidity in December: 74%
The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is August (69%).
Average rainfall in December
Spiro, OK
- Average rainfall in December: 2.68"
The wettest month (with the highest rainfall) is May (4.45").
The driest months (with the least rainfall) are January and February (2.17").
Average rainfall days in December
Spiro, OK
- Average rainfall days in December: 9.9 days
The month with the highest number of rainy days is March (15.6 days).
The month with the least rainy days is November (8.9 days).
Average snowfall in December
Spiro, OK
- Average snowfall in December: 0.35"
The month with the highest snowfall is February (1.1").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Spiro, OK
- Average snowfall days in December: 0.6 days
The month with the highest number of snowfall days is February (2.1 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
Spiro, OK
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 5h and 4min
The months with the most sunshine are July and August (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).
Average sunshine days in December
Spiro, OK
- Average sunshine days in December: 19.4 days
The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is May (13.4 days).
Average UV index in December
Spiro, OK
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Spiro, OK
- Average cloud cover in December: 39
The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in December
Spiro, 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).
Spiro, Oklahoma, USA
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