December weather forecast
Conway, IA

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Weather in December

December, the first month of the winter in Conway, is also a wintry month, with an average temperature varying between 22.8°F (-5.1°C) and 35.2°F (1.8°C).

Temperature

The average high-temperature decreases in December, shifting from a chilly 48.6°F (9.2°C) in November to a cold 35.2°F (1.8°C). December brings an average low-temperature of 22.8°F (-5.1°C) to Conway.

Humidity

In Conway, the average relative humidity in December is 78%.

Rainfall

In December, the rain falls for 4.6 days. Throughout December, 0.67" (17mm) of precipitation is accumulated. Throughout the year, in Conway, there are 123.8 rainfall days, and 21.93" (557mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Conway, during December, snow falls for 5.4 days and regularly aggregates up to 1.34" (34mm) of snow. In Conway, during the entire year, snow falls for 28.8 days and aggregates up to 10.51" (267mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 7:23 am and sunset at 4:51 pm. On the last day of December, sunrise is at 7:42 am and sunset at 5:01 pm CST.

Sunshine

The average sunshine in December is 5h.

UV index

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.
Note: A maximum high UV index of 2 in December translates into the following recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Updated: Jul 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

In December, in Conway, the average high-temperature is 35.2°F (1.8°C), and the average low-temperature is 22.8°F (-5.1°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in August is computed to be 87.8°F (31°C).

What is the average humidity in December?

The average relative humidity in December is 78%.

How many days does it rain in December?

In December, the rain falls for 4.6 days. Throughout December, 0.67" (17mm) of precipitation is accumulated.

How many days does it snow in December?

In December, it is snowing for 5.4 days. Throughout December, 1.34" (34mm) of snow is accumulated.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 18min of daylight.

How many hours of daylight does Conway have in December?

In December, the average day length is 9h and 19min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:23 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:01 pm CST.

How long on average sun shines in December?

In Conway, the average sunshine duration in December is 5h.

What is the UV index reading in December?

The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from 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
Conway, IA

Average temperature in December - Conway, IA
  • Average high temperature in December: 35.2°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (30.7°F).

  • Average low temperature in December: 22.8°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).

Average pressure in December
Conway, IA

Average pressure in December - Conway, IA
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in December
Conway, IA

Average wind speed in December - Conway, IA
  • Average wind speed in December: 9.7mph

The windiest month (with the highest average wind speed) is March (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).

Average humidity in December
Conway, IA

Average humidity in December - Conway, IA
  • Average humidity in December: 78%

The month with the highest relative humidity is June (81%).
The month with the lowest relative humidity is October (70%).

Average rainfall in December
Conway, IA

Average rainfall in December - Conway, IA
  • Average rainfall in December: 0.67"

The wettest month (with the highest rainfall) is June (3.78").
The driest month (with the least rainfall) is February (0.63").

Average rainfall days in December
Conway, IA

Average rainfall days in December - Conway, IA
  • Average rainfall days in December: 4.6 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (3.9 days).

Average snowfall in December
Conway, IA

Average snowfall in December - Conway, IA
  • Average snowfall in December: 1.34"

The month with the highest snowfall is January (3.15").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Conway, IA

Average snowfall days in December - Conway, IA
  • Average snowfall days in December: 5.4 days

The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Conway, IA
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 5h and 0min

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 36min).

Average sunshine days in December
Conway, IA

Average sunshine days in December - Conway, IA
  • Average sunshine days in December: 21.5 days

The month with the most sunshine days is November (21.9 days).
The month with the least sunshine days is May (11.1 days).

Average UV index in December
Conway, IA

Average UV index in December - Conway, 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
Conway, IA

Average cloud cover in December - Conway, IA
  • Average cloud cover in December: 45

The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are July and September (Cloud cover 28).

Average visibility in December
Conway, IA

Average visibility in December - Conway, 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).

Conway, Iowa, USA

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