December weather forecast
Raymar, IA

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Weather in December

The first month of the winter, December, is still a freezing cold month in Raymar, Iowa, with an average temperature fluctuating between 20.5°F (-6.4°C) and 31.1°F (-0.5°C).

Temperature

The beginning of December marks a decrease in the average high-temperature, transitioning from a chilly 44.1°F (6.7°C) in November to a subzero cold 31.1°F (-0.5°C). Raymar's nights in December cool down to an average low-temperature of 20.5°F (-6.4°C).

Humidity

In December, the average relative humidity is 82%.

Rainfall

In Raymar, Iowa, during December, the rain falls for 5.8 days and regularly aggregates up to 1.34" (34mm) of precipitation. In Raymar, Iowa, during the entire year, the rain falls for 133.6 days and collects up to 28.27" (718mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Raymar, in December, snow falls for 8.9 days, with typically accumulated 2.8" (71mm) of snow. In Raymar, Iowa, during the entire year, snow falls for 41.6 days and aggregates up to 15.24" (387mm) of snow.

Daylight

December has the shortest days of the year in Raymar, with an average of 9h and 6min of daylight.
On the first day of December, sunrise is at 7:19 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 4:46 pm CST.

Sunshine

In December, the average sunshine in Raymar is 4.3h.

UV index

The month with the lowest UV index in Raymar is December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.
Note: In December, the average maximum UV index of 1 translates into the following recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
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Frequently asked questions

How cold is it in Raymar in December?

The average high-temperature, in December, in Raymar, is 31.1°F (-0.5°C), while the average low-temperature is 20.5°F (-6.4°C).

What is the average humidity in December in Raymar?

In December, the average relative humidity is 82%.

How many days does it rain in December in Raymar?

In December, in Raymar, Iowa, the rain falls for 5.8 days. Throughout December, 1.34" (34mm) of precipitation is accumulated.

How much does it snow in Raymar in December?

In Raymar, Iowa, in December, snow falls for 8.9 days, with typically accumulated 2.8" (71mm) of snow.

What is the month with the shortest days in Raymar?

With an average of 9h and 6min of daylight, December has the shortest days of the year.

How many hours of daylight does Raymar have in December?

The average day length in December in Raymar is 9h and 8min.

When is the sunrise / sunset in December in Raymar?

In December, on the first day of the month, sunrise is at 7:19 am and sunset at 4:37 pm. On the last day of the month, in Raymar, sunrise is at 7:38 am and sunset at 4:46 pm CST.

How many hours of sunshine does Raymar have in December?

In December, the average sunshine duration is 4.3h.

When is the lowest UV index in Raymar?

With an average maximum UV index of 1, December is the month with the lowest UV index in Raymar, Iowa.

What is the UV index reading in December in Raymar?

The average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's 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
Raymar, IA

Average temperature in December - Raymar, IA
  • Average high temperature in December: 31.1°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (24.3°F).

  • Average low temperature in December: 20.5°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (12°F).

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Average pressure in December
Raymar, IA

Average pressure in December - Raymar, 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 (29.89"Hg).

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Average wind speed in December
Raymar, IA

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

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

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Average humidity in December
Raymar, IA

Average humidity in December - Raymar, IA
  • Average humidity in December: 82%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in December
Raymar, IA

Average rainfall in December - Raymar, IA
  • Average rainfall in December: 1.34"

The wettest month (with the highest rainfall) is June (4.29").
The driest months (with the least rainfall) are January and February (1.02").

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Average rainfall days in December
Raymar, IA

Average rainfall days in December - Raymar, IA
  • Average rainfall days in December: 5.8 days

The month with the highest number of rainy days is June (18.1 days).
The month with the least rainy days is February (4 days).

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Average snowfall in December
Raymar, IA

Average snowfall in December - Raymar, IA
  • Average snowfall in December: 2.8"

The month with the highest snowfall is January (4.21").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Raymar, IA

Average snowfall days in December - Raymar, IA
  • Average snowfall days in December: 8.9 days

The month with the highest number of snowfall days is January (11.5 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
Raymar, IA

Average daylight in December / Average sunshine in December - Raymar, 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 6min).

  • Average sunshine in December: 4h and 2min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

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Average sunshine days in December
Raymar, IA

Average sunshine days in December - Raymar, IA
  • Average sunshine days in December: 17.7 days

The month with the most sunshine days is October (17.8 days).
The month with the least sunshine days is June (10 days).

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Average UV index in December
Raymar, IA

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

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

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Average cloud cover in December
Raymar, IA

Average cloud cover in December - Raymar, IA
  • Average cloud cover in December: 56

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 31).

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Average visibility in December
Raymar, IA

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

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

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Raymar, Iowa, USA

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