Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December, known for its average high temperature of 39.2°F (4°C) and an average low temperature of 23.2°F (-4.9°C), is the coldest month.Humidity
In December, the average relative humidity is 65%.Rainfall
In Holyoke, in December, it is raining for 4.2 days, with typically 0.59" (15mm) of accumulated precipitation. In Holyoke, during the entire year, the rain falls for 119.5 days and collects up to 16.14" (410mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In December, it is snowing for 6.8 days. Throughout December, 2.13" (54mm) of snow is accumulated. Throughout the year, in Holyoke, there are 37.9 snowfall days, and 15.55" (395mm) of snow is accumulated.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 6:54 am and sunset at 4:22 pm. On the last day of December, sunrise is at 7:12 am and sunset at 4:32 pm MST.
Sunshine
February and December, with an average of 6.2h of sunshine, are months with the least sunshine.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Holyoke. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The average daily UV index of 2 in December transforms into the following instructions:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
Is December cold?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
What are the months with the least sunshine?
How many hours of sunshine does Holyoke have in December?
What is the month with the lowest UV index in Holyoke?
How high is the UV index in December?
Average temperature in December
Holyoke, CO
- Average high temperature in December: 39.2°F
The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is December (39.2°F).
- Average low temperature in December: 23.2°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is December (23.2°F).
Average pressure in December
Holyoke, CO
- Average pressure in December: 30.11"Hg
The months with the highest atmospheric pressure are January and December (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.82"Hg).
Average wind speed in December
Holyoke, CO
- Average wind speed in December: 10.6mph
The windiest month (with the highest average wind speed) is April (12.4mph).
The calmest month (with the lowest average wind speed) is August (9.4mph).
Average humidity in December
Holyoke, CO
- Average humidity in December: 65%
The months with the highest relative humidity are January and February (66%).
The month with the lowest relative humidity is September (51%).
Average rainfall in December
Holyoke, CO
- Average rainfall in December: 0.59"
The wettest month (with the highest rainfall) is May (2.99").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in December
Holyoke, CO
- Average rainfall days in December: 4.2 days
The month with the highest number of rainy days is May (17.8 days).
The months with the least rainy days are November and December (4.2 days).
Average snowfall in December
Holyoke, CO
- Average snowfall in December: 2.13"
The month with the highest snowfall is February (3.23").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Holyoke, CO
- Average snowfall days in December: 6.8 days
The months with the highest number of snowfall days are January and February (8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Holyoke, CO
- 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: 6h and 1min
The months with the most sunshine are July and August (Average sunshine: 11h and 30min).
The months with the least sunshine are February and December (Average sunshine: 6h and 12min).
Average sunshine days in December
Holyoke, CO
- Average sunshine days in December: 22.1 days
The month with the most sunshine days is November (22.7 days).
The month with the least sunshine days is May (10.6 days).
Average UV index in December
Holyoke, CO
- Average UV index in December: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Holyoke, CO
- Average cloud cover in December: 31
The month with the most cloud cover is February (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in December
Holyoke, 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).
Holyoke, Colorado, USA
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