December weather forecast
Ottawa, WV

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Weather in December

The first month of the winter, December, is still a chilly month in Ottawa, West Virginia, with temperature in the range of an average low of 32.2°F (0.1°C) and an average high of 44.1°F (6.7°C).

Temperature

Transitioning from November to December involves a subtle drop in average high-temperatures, descending from a fresh 53.1°F (11.7°C) to a chilly 44.1°F (6.7°C). Ottawa experiences an average low-temperature of 32.2°F (0.1°C) in the month of December.

Humidity

The average relative humidity in December is 81%.

Rainfall

In December, the rain falls for 13.4 days. Throughout December, 3.39" (86mm) of precipitation is accumulated. In Ottawa, West Virginia, during the entire year, the rain falls for 183.9 days and collects up to 35.35" (898mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. In December, it is snowing for 7.9 days. Throughout December, 3.82" (97mm) of snow is accumulated. In Ottawa, during the entire year, snow falls for 40.7 days and aggregates up to 19.45" (494mm) of snow.

Daylight

With an average of 9h and 36min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:24 am and sunset at 5:08 pm. On the last day of December, in Ottawa, sunrise is at 7:43 am and sunset at 5:18 pm EST.

Sunshine

The average sunshine in December in Ottawa is 4.1h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for average individuals.
Note: A maximum high UV index of 2 in December translates into the following recommendations:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

During December, Ottawa experiences an average high-temperature of 44.1°F (6.7°C) and a low-temperature of 32.2°F (0.1°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 93.2°F (34°C).

What is the average humidity in December?

In Ottawa, the average relative humidity in December is 81%.

How much does it rain in December?

In December, the rain falls for 13.4 days. Throughout December, 3.39" (86mm) of precipitation is accumulated.

How much does it snow in December?

In Ottawa, West Virginia, during December, snow falls for 7.9 days and regularly aggregates up to 3.82" (97mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 36min of daylight.

How many hours of daylight does Ottawa have in December?

In Ottawa, West Virginia, the average day length in December is 9h and 35min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:24 am and sunset at 5:08 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 5:18 pm EST.

How long on average sun shines in December in Ottawa?

In December, the average sunshine duration is 4.1h.

When is the lowest UV index?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index intensity in December?

In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Ottawa, WV

Average temperature in December - Ottawa, WV
  • Average high temperature in December: 44.1°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (39°F).

  • Average low temperature in December: 32.2°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).

Average pressure in December
Ottawa, WV

Average pressure in December - Ottawa, WV
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in December
Ottawa, WV

Average wind speed in December - Ottawa, WV
  • Average wind speed in December: 6.2mph

The windiest months (with the highest average wind speed) are January and February (6.6mph).
The calmest month (with the lowest average wind speed) is August (4mph).

Average humidity in December
Ottawa, WV

Average humidity in December - Ottawa, WV
  • Average humidity in December: 81%

The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are June, July, August and November (76%).

Average rainfall in December
Ottawa, WV

Average rainfall in December - Ottawa, WV
  • Average rainfall in December: 3.39"

The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is September (1.77").

Average rainfall days in December
Ottawa, WV

Average rainfall days in December - Ottawa, WV
  • Average rainfall days in December: 13.4 days

The month with the highest number of rainy days is May (20.6 days).
The month with the least rainy days is November (10.9 days).

Average snowfall in December
Ottawa, WV

Average snowfall in December - Ottawa, WV
  • Average snowfall in December: 3.82"

The months with the highest snowfall are January and February (5.12").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Ottawa, WV

Average snowfall days in December - Ottawa, WV
  • Average snowfall days in December: 7.9 days

The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Ottawa, WV

Average daylight in December / Average sunshine in December - Ottawa, WV
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in December: 4h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in December
Ottawa, WV

Average sunshine days in December - Ottawa, WV
  • Average sunshine days in December: 11.3 days

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is February (8.7 days).

Average UV index in December
Ottawa, WV

Average UV index in December - Ottawa, WV
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Ottawa, WV

Average cloud cover in December - Ottawa, WV
  • Average cloud cover in December: 58

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in December
Ottawa, WV

Average visibility in December - Ottawa, WV
  • Average visibility in December: 5mi

The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).

Ottawa, West Virginia, USA

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