December weather forecastMedford, MA
December
Weather in December
December, in Medford, Massachusetts, announces the arrival of winter in full force. This is apparent with temperatures plunging compared to November, averaging a high of 39.4°F (4.1°C) and a low of 29.3°F (-1.5°C). Along with the dropping temperatures, the prevalence of snowfall becomes a common occurrence in the weather forecast. As the year concludes, the profoundly cold and snowy conditions set the tone for the forthcoming January, restarting the annual weather cycle.Temperature
The shift to December brings a decrease in the average high-temperature, falling from a chilly 49.3°F (9.6°C) in November to a cold 39.4°F (4.1°C). In the month of December, Medford's average low-temperature falls to a subzero cold 29.3°F (-1.5°C).Humidity
The average relative humidity in December is 76%.Rainfall
In Medford, in December, it is raining for 2.9 days, with typically 0.43" (11mm) of accumulated precipitation. Throughout the year, there are 45.2 rainfall days, and 3.98" (101mm) of precipitation is accumulated.Snowfall
January through March, May, November and December are months with snowfall. The month with the most snowfall is December, when snow falls for 2.4 days and typically aggregates up to 0.55" (14mm) of snow.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
The average sunshine in December 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 low threat to health from unsafe exposure to UV radiation for the average person.Note: In December, the average maximum UV index of 2 translates into the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Medford, 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 (33.6°F).
- Average low temperature in December: 29.3°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in December
Medford, MA
- Average pressure in December: 30.03"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Medford, MA
- Average wind speed in December: 9.1mph
The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in December
Medford, MA
- Average humidity in December: 76%
The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (69%).
Average rainfall in December
Medford, MA
- Average rainfall in December: 0.43"
The wettest month (with the highest rainfall) is November (0.55").
The driest month (with the least rainfall) is September (0.08").
Average rainfall days in December
Medford, MA
- Average rainfall days in December: 2.9 days
The month with the highest number of rainy days is April (5.3 days).
The month with the least rainy days is January (2.2 days).
Average snowfall in December
Medford, MA
- Average snowfall in December: 0.55"
The month with the highest snowfall is December (0.55").
The months with the least snowfall are April, June, July, August, September and October (0").
Average snowfall days in December
Medford, MA
- Average snowfall days in December: 2.4 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Medford, 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 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in December
Medford, MA
- Average sunshine days in December: 26.5 days
The month with the most sunshine days is January (27.2 days).
The months with the least sunshine days are June and August (22.9 days).
Average UV index in December
Medford, 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
Medford, 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
Medford, 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).
