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
The average high-temperature decreases in December, shifting from a frosty 47.3°F (8.5°C) in November to an icy 36.7°F (2.6°C). Throughout December, an average low-temperature of 25.7°F (-3.5°C) is expected.Humidity
In Holyoke, the average relative humidity in December is 80%.Rainfall
In Holyoke, during December, the rain falls for 11.4 days and regularly aggregates up to 2.87" (73mm) of precipitation. Throughout the year, there are 151.6 rainfall days, and 27.72" (704mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Holyoke, in December, snow falls for 6.4 days, with typically accumulated 3.86" (98mm) of snow. Throughout the year, in Holyoke, there are 37.1 snowfall days, and 19.84" (504mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 7:00 am and sunset at 4:19 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 4:28 pm EST.
Sunshine
In Holyoke, Massachusetts, the average sunshine in December is 4.9h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: An average UV index of 2 in December transforms into this advice:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. To protect against the Sun's most potent rays, avoid direct exposure around midday. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December in Holyoke?
When are sunrise and sunset in December?
How many hours of sunshine does Holyoke have in December?
What are the months with the lowest UV index?
How high is the UV index in December in Holyoke?
Average temperature in December
Holyoke, MA
- Average high temperature in December: 36.7°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (31.1°F).
- Average low temperature in December: 25.7°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in December
Holyoke, MA
- Average pressure in December: 30.05"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Holyoke, MA
- Average wind speed in December: 7.6mph
The windiest months (with the highest average wind speed) are January, February and March (8mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
Holyoke, MA
- Average humidity in December: 80%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (72%).
Average rainfall in December
Holyoke, MA
- Average rainfall in December: 2.87"
The wettest month (with the highest rainfall) is October (2.99").
The driest month (with the least rainfall) is September (1.46").
Average rainfall days in December
Holyoke, MA
- Average rainfall days in December: 11.4 days
The months with the highest number of rainy days are April and May (15.3 days).
The month with the least rainy days is February (9.3 days).
Average snowfall in December
Holyoke, MA
- Average snowfall in December: 3.86"
The month with the highest snowfall is February (5.35").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Holyoke, MA
- Average snowfall days in December: 6.4 days
The month with the highest number of snowfall days is February (9.4 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, MA
- 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 12min).
- Average sunshine in December: 4h and 5min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Holyoke, MA
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is March (12.6 days).
Average UV index in December
Holyoke, MA
- 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, March, November and December (UV index 2).
Average cloud cover in December
Holyoke, MA
- Average cloud cover in December: 47
The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Holyoke, MA
- Average visibility in December: 6mi
The months with the highest visibility are April, November and December (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September and October (5mi).
Holyoke, Massachusetts, USA
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