December weather forecastUnion City, OK

December

Weather in December

December, the first month of the winter in Union City, is still a chilly month, with temperature in the range of an average low of 32.9°F (0.5°C) and an average high of 49.1°F (9.5°C).

Temperature

Union City sees its lowest temperatures during January and December, with an average high-temperature of 49.1°F (9.5°C).

Humidity

In Union City, the average relative humidity in December is 67%.

Rainfall

December is the month with the least rainfall. Rain falls for 5.6 days and accumulates 0.83" (21mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. In Union City, in December, snow falls for 1.3 days, with typically accumulated 0.43" (11mm) of snow. Throughout the year, there are 5.8 snowfall days, and 2.56" (65mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 48min of daylight.
On the first day of December in Union City, sunrise is at 7:22 am and sunset at 5:19 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:29 pm CST.

Sunshine

With an average of 6.2h of sunshine, December has the least sunshine of the year in Union City.

UV index

With an average maximum UV index of 2, December is the month with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.
Note: In December, the maximum UV index of 2 translates into these guidelines:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.

Frequently asked questions

Union City's coldest period falls in January and December, when the average high-temperatures ascend to 49.1°F (9.5°C).

In Union City, in December, the average high-temperature is 49.1°F (9.5°C), and the average low-temperature is 32.9°F (0.5°C). In September, the average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, is computed to be 89.6°F (32°C).

The average relative humidity in December is 67%.

December is the month with the least rainfall in Union City. Rain falls for 5.6 days and accumulates 0.83" (21mm) of precipitation.

In December, the rain falls for 5.6 days. Throughout December, 0.83" (21mm) of precipitation is accumulated.

In December, it is snowing for 1.3 days. Throughout December, 0.43" (11mm) of snow is accumulated.

The month with the shortest days is December, with an average of 9h and 48min of daylight.

In Union City, Oklahoma, the average day length in December is 9h and 49min.

In December, on the first day of the month, sunrise is at 7:22 am and sunset at 5:19 pm. On the last day of the month, in Union City, Oklahoma, sunrise is at 7:40 am and sunset at 5:29 pm CST.

The month with the least sunshine is December, with an average of 6.2h of sunshine.

In December, the average sunshine duration is 6.2h.

The month with the lowest UV index is December, with an average maximum UV index of 2.

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Union City, OK

  • Average high temperature in December: 49.1°F

The warmest month (with the highest average high temperature) is July (94.3°F).
The months with the lowest average high temperature are January and December (49.1°F).

  • Average low temperature in December: 32.9°F

The month with the highest average low temperature is July (73.6°F).
The coldest month (with the lowest average low temperature) is January (31.6°F).

Average pressure in December
Union City, 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
Union City, OK

  • Average wind speed in December: 10.5mph

The windiest month (with the highest average wind speed) is April (12.4mph).
The calmest month (with the lowest average wind speed) is August (8.6mph).

Average humidity in December
Union City, OK

  • Average humidity in December: 67%

The month with the highest relative humidity is May (71%).
The month with the lowest relative humidity is August (57%).

Average rainfall in December
Union City, OK

  • Average rainfall in December: 0.83"

The wettest month (with the highest rainfall) is May (3.7").
The driest month (with the least rainfall) is December (0.83").

Average rainfall days in December
Union City, OK

  • Average rainfall days in December: 5.6 days

The month with the highest number of rainy days is May (14.5 days).
The month with the least rainy days is January (3.7 days).

Average snowfall in December
Union City, OK

  • Average snowfall in December: 0.43"

The month with the highest snowfall is January (0.91").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Union City, OK

  • Average snowfall days in December: 1.3 days

The month with the highest number of snowfall days is February (1.9 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
Union City, OK

  • Average daylight in December: 9h and 48min

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: 6h and 12min

The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 12min).

Average sunshine days in December
Union City, OK

  • Average sunshine days in December: 23.3 days

The month with the most sunshine days is January (25.1 days).
The month with the least sunshine days is May (14.4 days).

Average UV index in December
Union City, 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
Union City, OK

  • Average cloud cover in December: 30

The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is August (Cloud cover 18).

Average visibility in December
Union City, 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).