December weather forecast
Luzerne, IA

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Weather in December

The first month of the winter, December, is also a wintry month in Luzerne, Iowa, with an average temperature varying between 21.7°F (-5.7°C) and 32.7°F (0.4°C).

Temperature

December's onset brings a reduction in the average high-temperature, from a frosty 45.1°F (7.3°C) in November to an icy 32.7°F (0.4°C). December nights observe an average temperature dip to a freezing cold 21.7°F (-5.7°C).

Humidity

In December, the average relative humidity is 81%.

Rainfall

In Luzerne, in December, during 6.4 rainfall days, 1.5" (38mm) of precipitation is typically accumulated. Throughout the year, in Luzerne, Iowa, there are 139 rainfall days, and 29.49" (749mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Luzerne, in December, snow falls for 8.5 days, with typically accumulated 2.64" (67mm) of snow. In Luzerne, during the entire year, snow falls for 39 days and aggregates up to 16.69" (424mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 12min of daylight.
On the first day of the month, sunrise is at 7:17 am and sunset at 4:38 pm. On the last day of December, sunrise is at 7:36 am and sunset at 4:47 pm CST.

Sunshine

In December, the average sunshine is 4.4h.

UV index

The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 2 during December translates into the following directions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Updated: Jun 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

The average high-temperature and low-temperature during December are 32.7°F (0.4°C) and 21.7°F (-5.7°C) respectively. The average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in July is appraised at 86°F (30°C).

What is the average humidity in December in Luzerne?

In December, the average relative humidity is 81%.

How many days does it rain in December?

In Luzerne, during December, the rain falls for 6.4 days and regularly aggregates up to 1.5" (38mm) of precipitation.

How many days does it snow in December?

In Luzerne, in December, during 8.5 snowfall days, 2.64" (67mm) of snow is typically accumulated.

What is the month with the shortest days?

With an average of 9h and 12min of daylight, December has the shortest days of the year in Luzerne.

How many hours of daylight does Luzerne have in December?

In December, the average day length is 9h and 11min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:17 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 4:47 pm CST.

How long on average sun shines in December?

The average sunshine duration in December is 4.4h.

What is the month with the lowest UV index?

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

What is the UV index intensity in December?

The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health 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
Luzerne, IA

Average temperature in December - Luzerne, IA
  • Average high temperature in December: 32.7°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (25.9°F).

  • Average low temperature in December: 21.7°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).

Average pressure in December
Luzerne, IA

Average pressure in December - Luzerne, IA
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in December
Luzerne, IA

Average wind speed in December - Luzerne, IA
  • Average wind speed in December: 10.1mph

The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest month (with the lowest average wind speed) is August (7mph).

Average humidity in December
Luzerne, IA

Average humidity in December - Luzerne, IA
  • Average humidity in December: 81%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (72%).

Average rainfall in December
Luzerne, IA

Average rainfall in December - Luzerne, IA
  • Average rainfall in December: 1.5"

The wettest month (with the highest rainfall) is May (4.61").
The driest month (with the least rainfall) is January (1.18").

Average rainfall days in December
Luzerne, IA

Average rainfall days in December - Luzerne, IA
  • Average rainfall days in December: 6.4 days

The month with the highest number of rainy days is June (19.3 days).
The month with the least rainy days is January (4.5 days).

Average snowfall in December
Luzerne, IA

Average snowfall in December - Luzerne, IA
  • Average snowfall in December: 2.64"

The month with the highest snowfall is January (5.24").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Luzerne, IA

Average snowfall days in December - Luzerne, IA
  • Average snowfall days in December: 8.5 days

The month with the highest number of snowfall days is February (10.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Luzerne, IA

Average daylight in December / Average sunshine in December - Luzerne, IA
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in December: 4h and 2min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in December
Luzerne, IA

Average sunshine days in December - Luzerne, IA
  • Average sunshine days in December: 18.2 days

The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is June (8.4 days).

Average UV index in December
Luzerne, IA

Average UV index in December - Luzerne, IA
  • Average UV index in December: 2

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

Average cloud cover in December
Luzerne, IA

Average cloud cover in December - Luzerne, IA
  • Average cloud cover in December: 54

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 30).

Average visibility in December
Luzerne, IA

Average visibility in December - Luzerne, IA
  • Average visibility in December: 6mi

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

Luzerne, Iowa, USA

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