December weather forecast
Northwood, IA

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Weather in December

December ushers in the classic winter season in Northwood, Iowa, with temperatures dropping further, increased snowfall and high relative humidity. The complete transition of weather from November is conspicuous as the month sees the first solid snow accumulation of the season, recording 3.66" (93mm). The trend continues towards even colder temperatures and heightened snowfall as January approaches. December weather in Northwood is synonymous with a white Christmas, frequent snowfall, and quintessentially winter ambiance.

Temperature

Observing a mild shift, the average high-temperature in Northwood during December reduces from November's icy 41.4°F (5.2°C) to a subzero cold 27.3°F (-2.6°C). Northwood throughout December, records an average low-temperature of 16.5°F (-8.6°C).

Humidity

In December, the average relative humidity in Northwood, Iowa, is 87%.

Rainfall

In Northwood, during December, the rain falls for 5.5 days and regularly aggregates up to 1.3" (33mm) of precipitation. In Northwood, Iowa, during the entire year, the rain falls for 134.3 days and collects up to 25.08" (637mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Northwood. In Northwood, in December, snow falls for 12.6 days, with typically accumulated 3.66" (93mm) of snow. In Northwood, Iowa, during the entire year, snow falls for 57 days and aggregates up to 22.83" (580mm) of snow.

Daylight

With an average of 9h and 0min of daylight, December has the shortest days of the year in Northwood.
On the first day of the month, sunrise is at 7:26 am and sunset at 4:37 pm. On the last day of December, sunrise is at 7:45 am and sunset at 4:46 pm CST.

Sunshine

In Northwood, the average sunshine in December is 3.9h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the average person.
Note: A maximum daily UV index of 1 during December morphs into the following directions:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Northwood?

During December, Northwood experiences an average high-temperature of 27.3°F (-2.6°C) and a low-temperature of 16.5°F (-8.6°C).

What is the average humidity in December in Northwood?

In December, the average relative humidity in Northwood, Iowa, is 87%.

How many days does it rain in December in Northwood?

In December, in Northwood, Iowa, the rain falls for 5.5 days. Throughout December, 1.3" (33mm) of precipitation is accumulated.

How much does it snow in Northwood in December?

In Northwood, in December, during 12.6 snowfall days, 3.66" (93mm) of snow is typically accumulated.

What is the month with the shortest days in Northwood?

December has the shortest days of the year in Northwood, Iowa, with an average of 9h and 0min of daylight.

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

The average day length in December in Northwood, Iowa, is 9h and 1min.

When are sunrise and sunset in December in Northwood?

In December, on the first day of the month, sunrise is at 7:26 am and sunset at 4:37 pm. On the last day of the month, in Northwood, sunrise is at 7:45 am and sunset at 4:46 pm CST.

How long on average sun shines in December in Northwood?

In December, the average sunshine duration is 3.9h.

What are the months with the lowest UV index in Northwood?

The months with the lowest UV index in Northwood are January, February, November and December, with an average maximum UV index of 1.

How high is the UV index in December in Northwood?

In Northwood, Iowa, the average daily maximum UV index in December is 1. 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
Northwood, IA

Average temperature in December - Northwood, IA
  • Average high temperature in December: 27.3°F

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (21.6°F).

  • Average low temperature in December: 16.5°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (9°F).

Average pressure in December
Northwood, IA

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

The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in December
Northwood, IA

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

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 (7.4mph).

Average humidity in December
Northwood, IA

Average humidity in December - Northwood, IA
  • Average humidity in December: 87%

The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are April and October (72%).

Average rainfall in December
Northwood, IA

Average rainfall in December - Northwood, IA
  • Average rainfall in December: 1.3"

The wettest month (with the highest rainfall) is June (4.13").
The driest month (with the least rainfall) is January (0.94").

Average rainfall days in December
Northwood, IA

Average rainfall days in December - Northwood, IA
  • Average rainfall days in December: 5.5 days

The month with the highest number of rainy days is June (18.4 days).
The month with the least rainy days is February (2.9 days).

Average snowfall in December
Northwood, IA

Average snowfall in December - Northwood, IA
  • Average snowfall in December: 3.66"

The month with the highest snowfall is February (5.94").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Northwood, IA

Average snowfall days in December - Northwood, IA
  • Average snowfall days in December: 12.6 days

The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Northwood, IA
  • Average daylight in December: 9h and 0min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in December: 3h and 5min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).

Average sunshine days in December
Northwood, IA

Average sunshine days in December - Northwood, IA
  • Average sunshine days in December: 14.7 days

The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is June (9.1 days).

Average UV index in December
Northwood, IA

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

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average cloud cover in December
Northwood, IA

Average cloud cover in December - Northwood, IA
  • Average cloud cover in December: 61

The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in December
Northwood, IA

Average visibility in December - Northwood, IA
  • Average visibility in December: 5mi

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

Northwood, Iowa, USA

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