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
In the transition to December, Eastham observes a minor drop in the average high-temperature, shifting from a cool 50.9°F (10.5°C) in November to a frosty 43.9°F (6.6°C). In Eastham, the nighttime temperature shows a slight difference from the daytime high, averaging to an icy 37.4°F (3°C) during December.Humidity
The average relative humidity in December in Eastham, Massachusetts, is 75%.Rainfall
In Eastham, in December, during 11.7 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. In Eastham, during the entire year, the rain falls for 136.1 days and collects up to 17.24" (438mm) of precipitation.Snowfall
Months with snowfall in Eastham, Massachusetts, are January through April, November and December. In Eastham, during December, snow falls for 4.7 days and regularly aggregates up to 0.51" (13mm) of snow. Throughout the year, there are 22.1 snowfall days, and 2.95" (75mm) of snow is accumulated.Daylight
December has the shortest days of the year in Eastham, with an average of 9h and 12min of daylight.On the first day of December in Eastham, sunrise is at 6:48 am and sunset at 4:09 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 4:19 pm EST.
Sunshine
The month with the least sunshine is December, with an average of 4.2h of sunshine.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Eastham. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: An average maximum UV index of 2 in December leads to these recommendations:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Frequently asked questions
How cold is it in Eastham in December?
What is the average humidity in December in Eastham?
How many days does it rain in December in Eastham?
How many days does it snow in December in Eastham?
What is the month with the shortest days in Eastham?
How many hours of daylight does Eastham have in December?
What time are sunrise and sunset in December in Eastham?
What is the month with the least sunshine in Eastham?
How many hours of sunshine does Eastham have in December?
When is the lowest UV index in Eastham?
What is the UV index reading in December in Eastham?
Average temperature in December
Eastham, MA
- Average high temperature in December: 43.9°F
The warmest month (with the highest average high temperature) is August (71.1°F).
The month with the lowest average high temperature is January (38.7°F).
- Average low temperature in December: 37.4°F
The month with the highest average low temperature is August (67.6°F).
The coldest months (with the lowest average low temperature) are January and February (31.6°F).
Average pressure in December
Eastham, MA
- Average pressure in December: 30.02"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Eastham, MA
- Average wind speed in December: 18mph
The windiest month (with the highest average wind speed) is January (18.5mph).
The calmest months (with the lowest average wind speed) are July and August (11.6mph).
Average humidity in December
Eastham, MA
- Average humidity in December: 75%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is November (74%).
Average rainfall in December
Eastham, MA
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is October (2.17").
The driest months (with the least rainfall) are February and November (1.18").
Average rainfall days in December
Eastham, MA
- Average rainfall days in December: 11.7 days
The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is February (7.3 days).
Average snowfall in December
Eastham, MA
- Average snowfall in December: 0.51"
The month with the highest snowfall is February (0.94").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Eastham, MA
- Average snowfall days in December: 4.7 days
The month with the highest number of snowfall days is January (6.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Eastham, 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 1min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days in December
Eastham, MA
- Average sunshine days in December: 13.1 days
The month with the most sunshine days is August (18.2 days).
The month with the least sunshine days is December (13.1 days).
Average UV index in December
Eastham, MA
- Average UV index in December: 2
The months with the highest UV index are 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
Eastham, MA
- Average cloud cover in December: 55
The month with the most cloud cover is December (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
Eastham, 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).
Eastham, Massachusetts, USA
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