December weather forecastMelrose, MA
December
Weather in December
The first month of the winter, December, is also an icy month in Melrose, Massachusetts, with an average temperature fluctuating between 39.4°F (4.1°C) and 29.3°F (-1.5°C).Temperature
December's arrival corresponds with a decrease in average high-temperatures, from November's frosty 49.5°F (9.7°C) to a wintry 39.4°F (4.1°C). In the month of December, the temperature generally rests at an average low of 29.3°F (-1.5°C).Humidity
In Melrose, the average relative humidity in December is 76%.Rainfall
The month with the most rainfall is December, when the rain falls for 10 days and typically aggregates up to 2.91" (74mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 5.6 days. Throughout December, 4.02" (102mm) of snow is accumulated. Throughout the year, there are 30.1 snowfall days, and 17.36" (441mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 6:54 am and sunset at 4:12 pm. On the last day of December, sunrise is at 7:13 am and sunset at 4:21 pm EST.
Sunshine
In December, the average sunshine is 4.8h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 2 in December translates into this advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Melrose, MA
- Average high temperature in December: 39.4°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.8°F).
- Average low temperature in December: 29.3°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in December
Melrose, MA
- Average pressure in December: 30.03"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Melrose, MA
- Average wind speed in December: 9.2mph
The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in December
Melrose, MA
- Average humidity in December: 76%
The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is April (69%).
Average rainfall in December
Melrose, MA
- Average rainfall in December: 2.91"
The wettest month (with the highest rainfall) is December (2.91").
The driest month (with the least rainfall) is September (1.26").
Average rainfall days in December
Melrose, MA
- Average rainfall days in December: 10 days
The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in December
Melrose, MA
- Average snowfall in December: 4.02"
The month with the highest snowfall is February (4.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Melrose, MA
- Average snowfall days in December: 5.6 days
The month with the highest number of snowfall days is January (7.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Melrose, MA
- Average daylight in December: 9h and 6min
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 6min).
- Average sunshine in December: 4h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Melrose, MA
- Average sunshine days in December: 16.2 days
The month with the most sunshine days is September (17.9 days).
The month with the least sunshine days is April (13.2 days).
Average UV index in December
Melrose, 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
Melrose, MA
- Average cloud cover in December: 48
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Melrose, MA
- 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).
