December weather forecast and climate
Weir, KS

The first month of the winter, December, is still a chilly month in Weir, Kansas, with average temperature ranging between min 31.1°F (-0.5°C) and max 45°F (7.2°C).

Temperature

In Weir, the average high-temperature drops, from a moderate 55.8°F (13.2°C) in November, to a frosty 45°F (7.2°C). In Weir, the average low-temperature is 31.1°F (-0.5°C).

Humidity

In Weir, the average relative humidity in December is 73%.

Rainfall

In Weir, in December, it is raining for 6.9 days, with typically 1.69" (43mm) of accumulated precipitation. Throughout the year, in Weir, there are 143.6 rainfall days, and 32.83" (834mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, November and December. In December, it is snowing for 2.3 days. Throughout December, 0.87" (22mm) of snow is accumulated. Throughout the year, there are 14.1 snowfall days, and 5.87" (149mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9.6h of daylight.

Sunshine

In December, the average sunshine is 5.6h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 2 in December interpret into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in December in Weir?

In Weir, in December, the average high-temperature is 45°F (7.2°C), and the average low-temperature is 31.1°F (-0.5°C).

What is the average humidity in December in Weir?

In Weir, Kansas, the average relative humidity in December is 73%.

How much does it rain in Weir in December?

In Weir, during December, the rain falls for 6.9 days and regularly aggregates up to 1.69" (43mm) of precipitation.

How much does it snow in Weir in December?

In December, in Weir, it is snowing for 2.3 days. Throughout December, 0.87" (22mm) of snow is accumulated.

What is the month with the shortest days in Weir?

With an average of 9.6h of daylight, December has the shortest days of the year in Weir, Kansas.

What is the average length of the day in December in Weir?

The average length of the day in December is 9.6h.

How long on average sun shines in December in Weir?

The average sunshine in December in Weir is 5.6h.

When is the lowest UV index in Weir?

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

What is the UV index reading in December in Weir?

In Weir, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from the exposure to the Sun's UV rays.
Average temperature in December - Weir, KS
  • Average high temperature in December: 45°F

The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (42.1°F).

  • Average low temperature in December: 31.1°F

The month with the highest average low temperature is July (70.2°F).
The coldest month (with the lowest average low temperature) is January (27°F).

Average pressure in December - Weir, KS
  • Average pressure in December: 30.14"

The month with the highest atmospheric pressure is January (30.17").
The month with the lowest atmospheric pressure is June (29.91").

Average wind speed in December - Weir, KS
  • Average wind speed in December: 9.9mph

The windiest month (with the highest average wind speed) is March (11.1mph).
The calmest months (with the lowest average wind speed) are July and August (7.2mph).

Average humidity in December - Weir, KS
  • Average humidity in December: 73%

The month with the highest relative humidity is May (80%).
Months with the lowest relative humidity are October and November (71%).

Average rainfall in December - Weir, KS
  • Average rainfall in December: 1.69"

The wettest month (with the highest rainfall) is May (5.67").
The driest month (with the least rainfall) is January (1.46").

Average rainfall days in December - Weir, KS
  • Average rainfall days in December: 6.9 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is December (6.9 days).

Average snowfall in December - Weir, KS
  • Average snowfall in December: 0.87"

The month with the highest snowfall is February (2.4").
Months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in December - Weir, KS
  • Average snowfall days in December: 2.3 days

The month with the highest number of snowfall days is January (4.5 days).
Months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in December / Average sunshine in December - Weir, KS
  • Average daylight in December: 9.6h

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in December: 5.6h

Months with the most sunshine are June and July (Average sunshine: 10.6h).
The month with the least sunshine is January (Average sunshine: 5.4h).

Average sunshine days in December - Weir, KS
  • Average sunshine days in December: 20.6 days

The month with the most sunshine days is December (20.6 days).
The month with the least sunshine days is May (12.5 days).

Average UV index in December - Weir, KS
  • Average UV index in December: 2

The month with the highest UV index is June (UV index 7).
Months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in December - Weir, KS
  • Average cloud cover in December: 39

The month with the most cloud cover is March (Cloud cover 45).
Months with the least cloud cover are June, July and August (Cloud cover 25).

Average visibility in December - Weir, KS
  • Average visibility in December: 6mi

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