December weather forecast
Lisbon, IA

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Weather in December

December, the first month of the winter in Lisbon, is also an icy month, with temperature in the range of an average high of 33.1°F (0.6°C) and an average low of 22.3°F (-5.4°C).

Temperature

As November shifts into December, a slight alteration in temperatures is observed, with average highs reducing from a frosty 45.3°F (7.4°C) to a wintry 33.1°F (0.6°C). An average nighttime temperature of 22.3°F (-5.4°C) is observed in Lisbon during December.

Humidity

In December, the average relative humidity is 81%.

Rainfall

In Lisbon, during December, the rain falls for 6.8 days and regularly aggregates up to 1.57" (40mm) of precipitation. In Lisbon, during the entire year, the rain falls for 147.9 days and collects up to 31.57" (802mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. In Lisbon, Iowa, during December, snow falls for 9.5 days and regularly aggregates up to 3.11" (79mm) of snow. In Lisbon, during the entire year, snow falls for 44 days and aggregates up to 18.35" (466mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 12min of daylight.
On the first day of December, sunrise is at 7:14 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 4:44 pm CST.

Sunshine

The average sunshine in December is 4.3h.

UV index

The month with the lowest UV index in Lisbon, Iowa, is December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the average maximum UV index of 1 translates into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

How cold is it in Lisbon in December?

December temperatures vary between a high-temperature of 33.1°F (0.6°C) and a low-temperature of 22.3°F (-5.4°C).

What is the average humidity in December in Lisbon?

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

How many days does it rain in December in Lisbon?

In Lisbon, Iowa, during December, the rain falls for 6.8 days and regularly aggregates up to 1.57" (40mm) of precipitation.

How many days does it snow in December in Lisbon?

In Lisbon, Iowa, during December, snow falls for 9.5 days and regularly aggregates up to 3.11" (79mm) of snow.

What is the month with the shortest days in Lisbon?

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

How many hours of daylight does Lisbon have in December?

The average day length in December is 9h and 11min.

What time are sunrise and sunset in December in Lisbon?

In December, on the first day of the month, sunrise is at 7:14 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 4:44 pm CST.

How long on average sun shines in December in Lisbon?

The average sunshine duration in December is 4.3h.

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

The month with the lowest UV index is December, with an average maximum UV index of 1.

What is the UV index intensity in December in Lisbon?

In Lisbon, the average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to Sun's UV rays.
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
Lisbon, IA

Average temperature in December - Lisbon, IA
  • Average high temperature in December: 33.1°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (26.2°F).

  • Average low temperature in December: 22.3°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 (14.2°F).

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Average pressure in December
Lisbon, IA

Average pressure in December - Lisbon, 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 (29.9"Hg).

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Average wind speed in December
Lisbon, IA

Average wind speed in December - Lisbon, IA
  • Average wind speed in December: 10mph

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

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Average humidity in December
Lisbon, IA

Average humidity in December - Lisbon, 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 (73%).

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Average rainfall in December
Lisbon, IA

Average rainfall in December - Lisbon, IA
  • Average rainfall in December: 1.57"

The wettest month (with the highest rainfall) is May (5").
The driest month (with the least rainfall) is January (1.34").

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Average rainfall days in December
Lisbon, IA

Average rainfall days in December - Lisbon, IA
  • Average rainfall days in December: 6.8 days

The month with the highest number of rainy days is May (19 days).
The months with the least rainy days are January and February (5.2 days).

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Average snowfall in December
Lisbon, IA

Average snowfall in December - Lisbon, IA
  • Average snowfall in December: 3.11"

The month with the highest snowfall is January (5.79").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Lisbon, IA

Average snowfall days in December - Lisbon, IA
  • Average snowfall days in December: 9.5 days

The month with the highest number of snowfall days is January (12.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Lisbon, 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 months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

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Average sunshine days in December
Lisbon, IA

Average sunshine days in December - Lisbon, IA
  • Average sunshine days in December: 16.8 days

The month with the most sunshine days is November (17 days).
The month with the least sunshine days is June (8.1 days).

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Average UV index in December
Lisbon, IA

Average UV index in December - Lisbon, IA
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in December
Lisbon, IA

Average cloud cover in December - Lisbon, IA
  • Average cloud cover in December: 55

The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 31).

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Average visibility in December
Lisbon, IA

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

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

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Lisbon, Iowa, USA

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