December weather forecast
Glasgow, IA

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Weather in December

December, the first month of the winter in Glasgow, is also an icy month, with an average temperature varying between 24.6°F (-4.1°C) and 36°F (2.2°C).

Temperature

December's arrival comes with a decrease in the average high-temperature, moving from a frosty 48°F (8.9°C) in November to an icy 36°F (2.2°C). Throughout December, Glasgow records an average temperature of 24.6°F (-4.1°C) at night.

Humidity

In December, the average relative humidity is 80%.

Rainfall

February and December are months with the least rain in Glasgow when the rain falls for 7.3 days and typically aggregates up to 1.38" (35mm) of rain.

Snowfall

Months with snowfall in Glasgow, Iowa, are January through April, October through December. In December, it is snowing for 6 days. Throughout December, 1.65" (42mm) of snow is accumulated. In Glasgow, during the entire year, snow falls for 30.7 days and aggregates up to 15" (381mm) 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 Glasgow, sunrise is at 7:13 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 4:49 pm CST.

Sunshine

The average sunshine in December is 4.5h.

UV index

The average daily maximum UV index in December in Glasgow is 2. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, the UV index of 2 transforms into the following advice:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
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Frequently asked questions

How cold is it in Glasgow in December?

The high-temperature in Glasgow, Iowa, during December is 36°F (2.2°C) and the low-temperature is 24.6°F (-4.1°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, is computed to be 87.8°F (31°C).

What is the average humidity in December in Glasgow?

In December, the average relative humidity in Glasgow is 80%.

What is the driest month in Glasgow?

February and December are months with the least rain in Glasgow when the rain falls for 7.3 days and typically aggregates up to 1.38" (35mm) of rain.

How much does it rain in Glasgow in December?

In Glasgow, during December, the rain falls for 7.3 days and regularly aggregates up to 1.38" (35mm) of precipitation.

How much does it snow in Glasgow in December?

In Glasgow, Iowa, during December, snow falls for 6 days and regularly aggregates up to 1.65" (42mm) of snow.

What is the month with the shortest days in Glasgow?

December has the shortest days of the year in Glasgow, Iowa, with an average of 9h and 18min of daylight.

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

The average day length in December in Glasgow, Iowa, is 9h and 17min.

What time are sunrise and sunset in December in Glasgow?

In December, on the first day of the month, sunrise is at 7:13 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 4:49 pm CST.

How long on average sun shines in December in Glasgow?

The average sunshine duration in December in Glasgow, Iowa, is 4.5h.

How high is the UV index in December in Glasgow?

In December, the average daily maximum UV index in Glasgow, Iowa, is 2. A UV Index reading of 2, and below, represents a low health threat 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
Glasgow, IA

Average temperature in December - Glasgow, IA
  • Average high temperature in December: 36°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in December: 24.6°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).

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Average pressure in December
Glasgow, IA

Average pressure in December - Glasgow, IA
  • Average pressure in December: 30.11"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
Glasgow, IA

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

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).

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Average humidity in December
Glasgow, IA

Average humidity in December - Glasgow, IA
  • Average humidity in December: 80%

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in December
Glasgow, IA

Average rainfall in December - Glasgow, IA
  • Average rainfall in December: 1.38"

The wettest month (with the highest rainfall) is May (4.29").
The driest months (with the least rainfall) are February and December (1.38").

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Average rainfall days in December
Glasgow, IA

Average rainfall days in December - Glasgow, IA
  • Average rainfall days in December: 7.3 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (4.6 days).

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Average snowfall in December
Glasgow, IA

Average snowfall in December - Glasgow, IA
  • Average snowfall in December: 1.65"

The month with the highest snowfall is January (4.76").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Glasgow, IA

Average snowfall days in December - Glasgow, IA
  • Average snowfall days in December: 6 days

The month with the highest number of snowfall days is January (9.6 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
Glasgow, IA

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

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 18min).

  • Average sunshine in December: 4h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

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Average sunshine days in December
Glasgow, IA

Average sunshine days in December - Glasgow, IA
  • Average sunshine days in December: 18 days

The month with the most sunshine days is October (18.4 days).
The month with the least sunshine days is May (10.6 days).

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Average UV index in December
Glasgow, IA

Average UV index in December - Glasgow, 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).

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Average cloud cover in December
Glasgow, IA

Average cloud cover in December - Glasgow, IA
  • Average cloud cover in December: 53

The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are July, August and September (Cloud cover 31).

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Average visibility in December
Glasgow, IA

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

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

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Glasgow, Iowa, USA

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