December weather forecast
Sanford, NY

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Weather in December

The first month of the winter, December, is also an icy month in Sanford, New York, with temperature in the range of an average high of 33.6°F (0.9°C) and an average low of 23.4°F (-4.8°C).

Temperature

Sanford's weather in December involves a decrease in the average high-temperature, moving down from November's chilly 43.7°F (6.5°C) to a cold 33.6°F (0.9°C). December witnesses an average low-temperature hovering around a freezing cold 23.4°F (-4.8°C).

Humidity

February and December, with an average relative humidity of 87%, are the most humid months.

Rainfall

In Sanford, in December, it is raining for 6.9 days, with typically 0.63" (16mm) of accumulated precipitation. Throughout the year, there are 104.8 rainfall days, and 9.13" (232mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Sanford, in December, snow falls for 9.6 days, with typically accumulated 1.3" (33mm) of snow. Throughout the year, there are 48.7 snowfall days, and 7.44" (189mm) of snow is accumulated.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:11 am and sunset at 4:31 pm. On the last day of December, sunrise is at 7:30 am and sunset at 4:40 pm EST.

Sunshine

The months with the least sunshine are February and December, with an average of 2.7h of sunshine.

UV index

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum UV index of 1 in December translates into the following recommendations:
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. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Boost your sun resistance with garments that are densely woven yet spacious. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Updated: Aug 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

The average high-temperature and low-temperature during December are 33.6°F (0.9°C) and 23.4°F (-4.8°C) respectively.

What is the most humid month in Sanford?

February and December, with an average relative humidity of 87%, are most humid months.

What is the average humidity in December in Sanford?

In December, the average relative humidity is 87%.

How much does it rain in December?

In Sanford, in December, during 6.9 rainfall days, 0.63" (16mm) of precipitation is typically accumulated.

How much does it snow in December?

In Sanford, in December, snow falls for 9.6 days, with typically accumulated 1.3" (33mm) of snow.

What is the month with the shortest days in Sanford?

December has the shortest days of the year in Sanford, with an average of 9h and 12min of daylight.

What is the average length of the day in December?

In December, the average day length is 9h and 10min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:11 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 4:40 pm EST.

What is the month with the least sunshine?

The months with the least sunshine are February and December, with an average of 2.7h of sunshine.

How many hours of sunshine does Sanford have in December?

In Sanford, the average sunshine duration in December is 2.7h.

What are the months with the lowest UV index?

The months with the lowest UV index are January, November and December, with an average maximum UV index of 1.

How high is the UV index in December?

In Sanford, the average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Sanford, NY

Average temperature in December - Sanford, NY
  • Average high temperature in December: 33.6°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (27.9°F).

  • Average low temperature in December: 23.4°F

The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (16°F).

Average pressure in December
Sanford, NY

Average pressure in December - Sanford, NY
  • Average pressure in December: 30.08"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Sanford, NY

Average wind speed in December - Sanford, NY
  • Average wind speed in December: 8.5mph

The windiest months (with the highest average wind speed) are January and February (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity in December
Sanford, NY

Average humidity in December - Sanford, NY
  • Average humidity in December: 87%

The months with the highest relative humidity are February and December (87%).
The months with the lowest relative humidity are June and July (79%).

Average rainfall in December
Sanford, NY

Average rainfall in December - Sanford, NY
  • Average rainfall in December: 0.63"

The wettest month (with the highest rainfall) is August (1.02").
The driest month (with the least rainfall) is September (0.55").

Average rainfall days in December
Sanford, NY

Average rainfall days in December - Sanford, NY
  • Average rainfall days in December: 6.9 days

The months with the highest number of rainy days are May and July (12.3 days).
The month with the least rainy days is January (4.4 days).

Average snowfall in December
Sanford, NY

Average snowfall in December - Sanford, NY
  • Average snowfall in December: 1.3"

The month with the highest snowfall is January (1.61").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Sanford, NY

Average snowfall days in December - Sanford, NY
  • Average snowfall days in December: 9.6 days

The month with the highest number of snowfall days is February (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Sanford, NY

Average daylight in December / Average sunshine in December - Sanford, NY
  • 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: 2h and 4min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The months with the least sunshine are February and December (Average sunshine: 2h and 42min).

Average sunshine days in December
Sanford, NY

Average sunshine days in December - Sanford, NY
  • Average sunshine days in December: 17.6 days

The month with the most sunshine days is January (20.1 days).
The month with the least sunshine days is April (14.8 days).

Average UV index in December
Sanford, NY

Average UV index in December - Sanford, NY
  • Average UV index in December: 1

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).

Average cloud cover in December
Sanford, NY

Average cloud cover in December - Sanford, NY
  • Average cloud cover in December: 73

The month with the most cloud cover is February (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 41).

Average visibility in December
Sanford, NY

Average visibility in December - Sanford, NY
  • Average visibility in December: 5mi

The months with the highest visibility are January, February, March, April, May, June, July, October, November and December (5mi).
The months with the lowest visibility are August and September (4mi).

Sanford, New York, USA

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