December weather forecast
Erie, CO

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Weather in December

The first month of the winter, December, is also a wintry month in Erie, Colorado, with an average temperature ranging between min 21°F (-6.1°C) and max 40.8°F (4.9°C).

Temperature

December is the coldest month, with an average high-temperature of 40.8°F (4.9°C) and an average low-temperature of 21°F (-6.1°C).

Humidity

In December, the average relative humidity in Erie is 61%.

Rainfall

January and December are months with the least rain in Erie when the rain falls for 3 days and typically aggregates up to 0.35" (9mm) of rain.

Snowfall

January through May, October through December are months with snowfall. In Erie, during 5.9 snowfall days, 2.83" (72mm) of snow is typically accumulated. Throughout the year, in Erie, Colorado, there are 38.2 snowfall days, and 27.44" (697mm) of snow is accumulated.

Daylight

With an average of 9h and 23min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:02 am and sunset at 4:35 pm. On the last day of December, in Erie, sunrise is at 7:21 am and sunset at 4:44 pm MST.

Sunshine

In Erie, the average sunshine in December is 6.8h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Erie. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 2 in December interpret into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the coldest month in Erie?

December is the coldest month in Erie, with an average high-temperature of 40.8°F (4.9°C) and an average low-temperature of 21°F (-6.1°C).

What is the temperature in December in Erie?

In Erie, Colorado, in December, the average high-temperature is 40.8°F (4.9°C), and the average low-temperature is 21°F (-6.1°C). in August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is estimated at 87.8°F (31°C).

What is the average humidity in December in Erie?

In Erie, Colorado, the average relative humidity in December is 61%.

What is the driest month in Erie?

January and December are months with the least rain when the rain falls for 3 days and typically aggregates up to 0.35" (9mm) of rain.

How many days does it rain in December in Erie?

In December, the rain falls for 3 days. Throughout December, 0.35" (9mm) of precipitation is accumulated.

How much does it snow in Erie in December?

In Erie, Colorado, during December, snow falls for 5.9 days and regularly aggregates up to 2.83" (72mm) of snow.

What is the month with the shortest days in Erie?

December has the shortest days of the year, with an average of 9h and 23min of daylight.

How many hours of daylight does Erie have in December?

In December, the average day length in Erie, Colorado, is 9h and 23min.

When are sunrise and sunset in December in Erie?

In December, on the first day of the month, sunrise is at 7:02 am and sunset at 4:35 pm. On the last day of the month, in Erie, sunrise is at 7:21 am and sunset at 4:44 pm MST.

How many hours of sunshine does Erie have in December?

In December, the average sunshine duration is 6.8h.

When is the lowest UV index in Erie?

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

What is the UV index intensity in December in Erie?

In Erie, Colorado, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health threat from unsafe exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJFMAMJJASONDecember
Nov
December
Jan
Average high temperature
52.5°F 11.4°C
40.8°F 4.9°C
42.8°F 6°C
Average low temperature
30.6°F -0.8°C
21°F -6.1°C
22.8°F -5.1°C
Average pressure
30.08" 764mmHg
30.12" 765mmHg
30.14" 766mmHg
Average wind speed
5.9mph 9.5km/h
5.7mph 9.2km/h
6mph 9.7km/h
Average max. wind speed
6.5mph 10.5km/h
6.3mph 10.1km/h
6.6mph 10.6km/h
Average wind speed gusts
10.5mph 16.9km/h
10.2mph 16.4km/h
11mph 17.7km/h
Average humidity
52%
61%
63%
Average rainfall
0.59" 15mm
0.35" 9mm
0.35" 9mm
Average rainfall days
3.5
3
3
Average snowfall
3.9" 99mm
2.83" 72mm
2.72" 69mm
Average snowfall days
4.5
5.9
5.8
Average daylight
9h 59min
9h 23min
9h 43min
Average sunshine
7h 6min
6h 48min
7h 0min
Average sunshine days
22.7
24.5
24.3
Average UV index
2
2
2
Average cloud cover
19%
24%
23%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in December
Erie, CO

Average temperature in December - Erie, CO
  • Average high temperature in December: 40.8°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is December (40.8°F).

  • Average low temperature in December: 21°F

The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is December (21°F).

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Average pressure in December
Erie, CO

Average pressure in December - Erie, CO
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in December
Erie, CO

Average wind speed in December - Erie, CO
  • Average wind speed in December: 5.7mph

The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is December (5.7mph).

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Average humidity in December
Erie, CO

Average humidity in December - Erie, CO
  • Average humidity in December: 61%

The month with the highest relative humidity is February (64%).
The month with the lowest relative humidity is August (40%).

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Average rainfall in December
Erie, CO

Average rainfall in December - Erie, CO
  • Average rainfall in December: 0.35"

The wettest month (with the highest rainfall) is May (1.69").
The driest months (with the least rainfall) are January and December (0.35").

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Average rainfall days in December
Erie, CO

Average rainfall days in December - Erie, CO
  • Average rainfall days in December: 3 days

The months with the highest number of rainy days are May and July (12.3 days).
The months with the least rainy days are January and December (3 days).

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Average snowfall in December
Erie, CO

Average snowfall in December - Erie, CO
  • Average snowfall in December: 2.83"

The month with the highest snowfall is April (4.45").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Erie, CO

Average snowfall days in December - Erie, CO
  • Average snowfall days in December: 5.9 days

The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in December /
Average sunshine in December
Erie, CO

Average daylight in December / Average sunshine in December - Erie, CO
  • Average daylight in December: 9h and 23min

The month with the longest days is June (Average daylight: 14h and 58min).
The month with the shortest days is December (Average daylight: 9h and 23min).

  • Average sunshine in December: 6h and 48min

The months with the most sunshine are June and July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 42min).

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Average sunshine days in December
Erie, CO

Average sunshine days in December - Erie, CO
  • Average sunshine days in December: 24.5 days

The month with the most sunshine days is December (24.5 days).
The month with the least sunshine days is July (12.8 days).

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Average UV index in December
Erie, CO

Average UV index in December - Erie, CO
  • 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
Erie, CO

Average cloud cover in December - Erie, CO
  • Average cloud cover in December: 24

The month with the most cloud cover is April (Cloud cover 27).
The month with the least cloud cover is September (Cloud cover 15).

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Average visibility in December
Erie, CO

Average visibility in December - Erie, CO
  • 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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