Cass
West Virginia, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Cass, West VA

December, the first month of the winter, in Cass, is also a wintry month, with average temperature varying between 21.2°F (-6°C) and 41°F (5°C).

Temperature

In December, the average high-temperature drops, from a cool 50°F (10°C) in November, to a cold 41°F (5°C). In Cass, the average low-temperature is 21.2°F (-6°C).

Rainfall

In December, in Cass, the rain falls for 16 days. Throughout December, 4.7" (120mm) of precipitation is accumulated. In Cass, during the entire year, the rain falls for 169 days and collects up to 56.7" (1441mm) of precipitation.

Daylight

December has the shortest days of the year, with an average of 9.5h of daylight.

Sunshine

With an average of 3h of sunshine, December has the least sunshine of the year in Cass.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Cass. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to the UV radiation for average individuals.
The daily maximum UV index of 2 interpret into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in December in Cass?

In Cass, in December, the average high-temperature is 41°F (5°C), and the average low-temperature is 21.2°F (-6°C).

How many days does it rain in December in Cass?

In December, in Cass, West Virginia, the rain falls for 16 days. Throughout December, 4.7" (120mm) of precipitation is accumulated.

What is the month with the shortest days in Cass?

December has the shortest days of the year in Cass, West Virginia, with an average of 9.5h of daylight.

How many hours of daylight does Cass have in December?

In Cass, the average length of the day in December is 9.5h.

What is the month with the least sunshine in Cass?

With an average of 3h of sunshine, December has the least sunshine of the year in Cass, West Virginia.

How long on average sun shines in December in Cass?

In December, the average sunshine in Cass, West Virginia, is 3h.

What is the month with the lowest UV index in Cass?

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

What is the UV index intensity in December in Cass?

The average daily maximum UV index in December in Cass is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from the exposure to the Sun's UV rays.
Average temperature in December - Cass, West VA
  • Average high temperature in December: 41°F

Warmest months (with the highest average high temperature) are July and August (77°F).
The month with the lowest average high temperature is January (36°F).

  • Average low temperature in December: 21°F

Months with the highest average low temperature are July and August (55°F).
The coldest month (with the lowest average low temperature) is January (16°F).

Average rainfall in December - Cass, West VA
  • Average rainfall in December: 4.7"

The wettest month (with the highest rainfall) is July (5.6").
The driest month (with the lowest rainfall) is October (4.2").

Average rainfall days in December - Cass, West VA
  • Average rainfall days in December: 16 days

The month with the highest number of rainy days is January (17 days).
Months with the lowest number of rainy days are September and October (11 days).

Average daylight in December / Average sunshine in December - Cass, West VA
  • Average daylight in December: 9.5h

The month with the longest days is June (Average daylight: 14.8h).
The month with shortest days is December (Average daylight: 9.5h).

  • Average sunshine in December: 3h

Months with most sunshine are May, June, July and August (Average sunshine: 7h).
The month with least sunshine is December (Average sunshine: 3h).

Average UV index in December - Cass, West VA
  • Average UV index in December: 2

Months with the highest UV index are June and July (UV index 10).
Months with the lowest UV index are January and December (UV index 2).