December weather forecast
Montrose, IA

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Weather in December

December, the first month of the winter in Montrose, is also an icy month, with an average temperature varying between 37.4°F (3°C) and 25.7°F (-3.5°C).

Temperature

December brings a drop in Montrose's average high-temperature, falling from a chilly 49.3°F (9.6°C) in November to an icy 37.4°F (3°C). Montrose, during the month of December, experiences an average low-temperature of 25.7°F (-3.5°C).

Humidity

The average relative humidity in December in Montrose is 78%.

Rainfall

In Montrose, Iowa, in December, during 7.1 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. Throughout the year, there are 147.8 rainfall days, and 30.98" (787mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. In Montrose, Iowa, in December, snow falls for 6.2 days, with typically accumulated 2.17" (55mm) of snow. In Montrose, Iowa, during the entire year, snow falls for 33.7 days and aggregates up to 14.88" (378mm) 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 December in Montrose, sunrise is at 7:10 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:49 pm CST.

Sunshine

The average sunshine in December in Montrose 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 Montrose. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the average person.
Note: A maximum high daily UV index of 2 during December translates into the following directions:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Enhance your sun protection with tightly woven, yet airy clothing. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
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Frequently asked questions

How cold is it in Montrose in December?

In December, in Montrose, the average high-temperature is 37.4°F (3°C), and the average low-temperature is 25.7°F (-3.5°C). The average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in August is evaluated at 89.6°F (32°C).

What is the average humidity in December in Montrose?

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

How many days does it rain in December in Montrose?

In Montrose, Iowa, in December, during 7.1 rainfall days, 1.57" (40mm) of precipitation is typically accumulated.

How many days does it snow in December in Montrose?

In Montrose, Iowa, during December, snow falls for 6.2 days and regularly aggregates up to 2.17" (55mm) of snow.

What is the month with the shortest days in Montrose?

With an average of 9h and 18min of daylight, December has the shortest days of the year in Montrose.

How many hours of daylight does Montrose have in December?

The average day length in December is 9h and 20min.

What time are sunrise and sunset in December in Montrose?

In December, on the first day of the month, sunrise is at 7:10 am and sunset at 4:39 pm. On the last day of the month, in Montrose, sunrise is at 7:28 am and sunset at 4:49 pm CST.

How long on average sun shines in December in Montrose?

The average sunshine duration in December in Montrose, Iowa, is 4.7h.

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

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.

How high is the UV index in December in Montrose?

In Montrose, 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 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
Montrose, IA

Average temperature in December - Montrose, IA
  • Average high temperature in December: 37.4°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (31.3°F).

  • Average low temperature in December: 25.7°F

The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

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Average pressure in December
Montrose, IA

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

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

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Average wind speed in December
Montrose, IA

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

The windiest months (with the highest average wind speed) are January, February and March (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
Montrose, IA

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

The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in December
Montrose, IA

Average rainfall in December - Montrose, IA
  • Average rainfall in December: 1.57"

The wettest month (with the highest rainfall) is May (4.33").
The driest month (with the least rainfall) is January (1.38").

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Average rainfall days in December
Montrose, IA

Average rainfall days in December - Montrose, IA
  • Average rainfall days in December: 7.1 days

The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is February (5.5 days).

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Average snowfall in December
Montrose, IA

Average snowfall in December - Montrose, IA
  • Average snowfall in December: 2.17"

The month with the highest snowfall is January (4.53").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Montrose, IA

Average snowfall days in December - Montrose, IA
  • Average snowfall days in December: 6.2 days

The month with the highest number of snowfall days is January (10.6 days).
The 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
Montrose, IA

Average daylight in December / Average sunshine in December - Montrose, 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: 4h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

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Average sunshine days in December
Montrose, IA

Average sunshine days in December - Montrose, IA
  • Average sunshine days in December: 17.8 days

The month with the most sunshine days is December (17.8 days).
The month with the least sunshine days is June (8.3 days).

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Average UV index in December
Montrose, IA

Average UV index in December - Montrose, IA
  • Average UV index in December: 2

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

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Average cloud cover in December
Montrose, IA

Average cloud cover in December - Montrose, IA
  • Average cloud cover in December: 50

The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July, August and September (Cloud cover 30).

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Average visibility in December
Montrose, IA

Average visibility in December - Montrose, 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).

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Montrose, Iowa, USA

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