December weather forecast
Fort Madison, IA

Weather in December

The first month of the winter, December, is still a cold month in Fort Madison, Iowa, with average temperature varying between 36.5°F (2.5°C) and 25.2°F (-3.8°C).

Temperature

In Fort Madison, the average high-temperature drops, from a chilly 48.7°F (9.3°C) in November, to a cold 36.5°F (2.5°C). In Fort Madison, the average low-temperature is 25.2°F (-3.8°C).

Humidity

The average relative humidity in December is 79%.

Rainfall

January and December are months with the least rain in Fort Madison, Iowa, when the rain falls for 4.7 days and typically aggregates up to 0.47" (12mm) of rain.

Snowfall

January through April, October through December are months with snowfall. In Fort Madison, in December, snow falls for 4.4 days, with typically accumulated 0.43" (11mm) of snow. Throughout the year, in Fort Madison, there are 24.5 snowfall days, and 4.25" (108mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Fort Madison, Iowa, with an average of 9.3h of daylight.

Sunshine

In December, the average sunshine in Fort Madison is 4.7h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Fort Madison. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to the UV radiation for average individuals.
Note: In December, the average maximum UV index of 2 translate into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the average humidity in December in Fort Madison?

In Fort Madison, the average relative humidity in December is 79%.

What is the driest month in Fort Madison?

Months with the least rainfall in Fort Madison are January and December Rain falls for 4.7 days and accumulates 0.47" (12mm) of rain.

How much does it rain in Fort Madison in December?

In Fort Madison, in December, it is raining for 4.7 days, with typically 0.47" (12mm) of accumulated precipitation.

How much does it snow in Fort Madison in December?

In December, in Fort Madison, it is snowing for 4.4 days. Throughout December, 0.43" (11mm) of snow is accumulated.

What is the month with the shortest days in Fort Madison?

With an average of 9.3h of daylight, December has the shortest days of the year in Fort Madison, Iowa.

What is the average length of the day in December in Fort Madison?

In Fort Madison, Iowa, the average length of the day in December is 9.3h.

How many hours of sunshine does Fort Madison have in December?

The average sunshine in December in Fort Madison, Iowa, is 4.7h.

When is the lowest UV index in Fort Madison?

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 Fort Madison?

In Fort Madison, Iowa, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from the exposure to the Sun's UV rays.

Average temperature in December
Fort Madison, IA

Average temperature in December - Fort Madison, IA
  • Average high temperature in December: 36.5°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (30.4°F).

  • Average low temperature in December: 25.2°F

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

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Average pressure in December
Fort Madison, IA

Average pressure in December - Fort Madison, IA
  • Average pressure in December: 30.12"

The month with the highest atmospheric pressure is January (30.15").
The month with the lowest atmospheric pressure is June (29.9").

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Average wind speed in December
Fort Madison, IA

Average wind speed in December - Fort Madison, IA
  • Average wind speed in December: 9.9mph

The windiest months (with the highest average wind speed) are January, February, March and April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).

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Average humidity in December
Fort Madison, IA

Average humidity in December - Fort Madison, IA
  • Average humidity in December: 79%

The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in December
Fort Madison, IA

Average rainfall in December - Fort Madison, IA
  • Average rainfall in December: 0.47"

The wettest month (with the highest rainfall) is May (1.46").
The driest months (with the least rainfall) are January and December (0.47").

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Average rainfall days in December
Fort Madison, IA

Average rainfall days in December - Fort Madison, IA
  • Average rainfall days in December: 4.7 days

The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is February (3.5 days).

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Average snowfall in December
Fort Madison, IA

Average snowfall in December - Fort Madison, IA
  • Average snowfall in December: 0.43"

The month with the highest snowfall is January (1.1").
Months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Fort Madison, IA

Average snowfall days in December - Fort Madison, IA
  • Average snowfall days in December: 4.4 days

The month with the highest number of snowfall days is January (7.7 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Fort Madison, IA

Average daylight in December / Average sunshine in December - Fort Madison, IA
  • Average daylight in December: 9.3h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in December: 4.7h

The month with the most sunshine is July (Average sunshine: 10.4h).
The month with the least sunshine is January (Average sunshine: 4.3h).

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Average sunshine days in December
Fort Madison, IA

Average sunshine days in December - Fort Madison, IA
  • Average sunshine days in December: 22.9 days

The month with the most sunshine days is December (22.9 days).
The month with the least sunshine days is May (14 days).

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Average UV index in December
Fort Madison, IA

Average UV index in December - Fort Madison, IA
  • Average UV index in December: 2

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

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Average cloud cover in December
Fort Madison, IA

Average cloud cover in December - Fort Madison, IA
  • Average cloud cover in December: 50

The month with the most cloud cover is January (Cloud cover 54).
Months with the least cloud cover are July, August and September (Cloud cover 28).

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Average visibility in December
Fort Madison, IA

Average visibility in December - Fort Madison, IA
  • 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).

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