December weather forecast
Spring Hill, IA

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Weather in December

December, the first month of the winter in Spring Hill, is also a wintry month, with temperature in the range of an average high of 34.7°F (1.5°C) and an average low of 22.8°F (-5.1°C).

Temperature

The onset of December comes with a shift in the average high-temperature, falling from a chilly 47.5°F (8.6°C) in November to a wintry 34.7°F (1.5°C). An average low-temperature of 22.8°F (-5.1°C) is observed during the December nights.

Humidity

In December, the average relative humidity is 78%.

Rainfall

The month with the least rainfall is December, when the rain falls for 4.7 days and typically collects 0.55" (14mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In December, it is snowing for 5.7 days. Throughout December, 0.94" (24mm) of snow is accumulated. In Spring Hill, during the entire year, snow falls for 31.9 days and aggregates up to 10.12" (257mm) of snow.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:21 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 4:55 pm CST.

Sunshine

In Spring Hill, the average sunshine in December is 4.8h.

UV index

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of 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. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Updated: Jul 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

December temperatures vary between a high-temperature of 34.7°F (1.5°C) and a low-temperature of 22.8°F (-5.1°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, is estimated at 87.8°F (31°C).

What is the average humidity in December?

The average relative humidity in December is 78%.

What is the driest month?

December is the month with the least rainfall. Rain falls for 4.7 days and accumulates 0.55" (14mm) of precipitation.

How much does it rain in December?

In Spring Hill, in December, it is raining for 4.7 days, with typically 0.55" (14mm) of accumulated precipitation.

How much does it snow in December?

In Spring Hill, Iowa, during December, snow falls for 5.7 days and regularly aggregates up to 0.94" (24mm) of snow.

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.

How many hours of daylight does Spring Hill have in December?

The average day length in December is 9h and 14min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 7:21 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 4:55 pm CST.

How long on average sun shines in December?

The average sunshine duration in December is 4.8h.

What is the UV index intensity in December?

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health risk 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
Spring Hill, IA

Average temperature in December - Spring Hill, IA
  • Average high temperature in December: 34.7°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in December: 22.8°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).

Average pressure in December
Spring Hill, IA

Average pressure in December - Spring Hill, IA
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in December
Spring Hill, IA

Average wind speed in December - Spring Hill, IA
  • Average wind speed in December: 9.9mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).

Average humidity in December
Spring Hill, IA

Average humidity in December - Spring Hill, IA
  • Average humidity in December: 78%

The months with the highest relative humidity are January and June (82%).
The month with the lowest relative humidity is October (71%).

Average rainfall in December
Spring Hill, IA

Average rainfall in December - Spring Hill, IA
  • Average rainfall in December: 0.55"

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is December (0.55").

Average rainfall days in December
Spring Hill, IA

Average rainfall days in December - Spring Hill, IA
  • Average rainfall days in December: 4.7 days

The months with the highest number of rainy days are May and June (15.9 days).
The month with the least rainy days is January (3.4 days).

Average snowfall in December
Spring Hill, IA

Average snowfall in December - Spring Hill, IA
  • Average snowfall in December: 0.94"

The month with the highest snowfall is February (3.03").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Spring Hill, IA

Average snowfall days in December - Spring Hill, IA
  • Average snowfall days in December: 5.7 days

The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Spring Hill, IA

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

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in December
Spring Hill, IA

Average sunshine days in December - Spring Hill, IA
  • Average sunshine days in December: 21.9 days

The month with the most sunshine days is December (21.9 days).
The month with the least sunshine days is June (11 days).

Average UV index in December
Spring Hill, IA

Average UV index in December - Spring Hill, IA
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in December
Spring Hill, IA

Average cloud cover in December - Spring Hill, IA
  • Average cloud cover in December: 49

The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in December
Spring Hill, IA

Average visibility in December - Spring Hill, IA
  • Average visibility in December: 6mi

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

Spring Hill, Iowa, USA

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