December weather forecast
Cairo, NY

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Weather in December

The first month of the winter, December, is still a cold month in Cairo, New York, with an average temperature ranging between max 34.9°F (1.6°C) and min 24.1°F (-4.4°C).

Temperature

December's onset brings a slight change in high-temperatures, falling from a chilly 45.1°F (7.3°C) in November to an icy 34.9°F (1.6°C). In Cairo, December's nights observe an average temperature dip to a freezing cold 24.1°F (-4.4°C).

Humidity

February and December, with an average relative humidity of 83%, are the most humid months.

Rainfall

In December, the rain falls for 13.5 days. Throughout December, 2.91" (74mm) of precipitation is accumulated. In Cairo, during the entire year, the rain falls for 174.8 days and collects up to 33.46" (850mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Cairo, in December, snow falls for 13.6 days, with typically accumulated 9.13" (232mm) of snow. Throughout the year, there are 70.1 snowfall days, and 51.18" (1300mm) 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 December, sunrise is at 7:05 am and sunset at 4:24 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:33 pm EST.

Sunshine

In December, the average sunshine is 4.9h.

UV index

The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The UV index of 2 during December leads to these advisories:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Updated: Jul 28, 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 in Cairo during December are 34.9°F (1.6°C) and 24.1°F (-4.4°C) respectively.

What are the most humid months?

The months with the highest humidity are February and December, with an average relative humidity of 83%.

What is the average humidity in December?

In Cairo, the average relative humidity in December is 83%.

How much does it rain in December?

In Cairo, New York, during December, the rain falls for 13.5 days and regularly aggregates up to 2.91" (74mm) of precipitation.

How many days does it snow in December?

In December, it is snowing for 13.6 days. Throughout December, 9.13" (232mm) of snow is accumulated.

What is the month with the shortest days?

With an average of 9h and 6min of daylight, December has the shortest days of the year.

How many hours of daylight does Cairo have in December?

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

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:05 am and sunset at 4:24 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:33 pm EST.

How long on average sun shines in December?

The average sunshine duration in December is 4.9h.

What is the month with the lowest UV index?

The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2.

What is the UV index reading in December?

The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to Sun's UV rays.
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
Cairo, NY

Average temperature in December - Cairo, NY
  • Average high temperature in December: 34.9°F

The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (29.3°F).

  • Average low temperature in December: 24.1°F

The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).

Average pressure in December
Cairo, NY

Average pressure in December - Cairo, NY
  • Average pressure in December: 30.06"Hg

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Cairo, NY

Average wind speed in December - Cairo, NY
  • Average wind speed in December: 6.8mph

The windiest month (with the highest average wind speed) is January (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

Average humidity in December
Cairo, NY

Average humidity in December - Cairo, NY
  • Average humidity in December: 83%

The months with the highest relative humidity are February and December (83%).
The months with the lowest relative humidity are April, June and July (76%).

Average rainfall in December
Cairo, NY

Average rainfall in December - Cairo, NY
  • Average rainfall in December: 2.91"

The wettest month (with the highest rainfall) is July (3.46").
The driest month (with the least rainfall) is September (1.97").

Average rainfall days in December
Cairo, NY

Average rainfall days in December - Cairo, NY
  • Average rainfall days in December: 13.5 days

The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is February (10 days).

Average snowfall in December
Cairo, NY

Average snowfall in December - Cairo, NY
  • Average snowfall in December: 9.13"

The month with the highest snowfall is February (11.02").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Cairo, NY

Average snowfall days in December - Cairo, NY
  • Average snowfall days in December: 13.6 days

The month with the highest number of snowfall days is February (15.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Cairo, 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 6min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).

Average sunshine days in December
Cairo, NY

Average sunshine days in December - Cairo, NY
  • Average sunshine days in December: 12.2 days

The month with the most sunshine days is September (14.6 days).
The month with the least sunshine days is April (9.8 days).

Average UV index in December
Cairo, NY

Average UV index in December - Cairo, NY
  • Average UV index in December: 2

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, February, March, October, November and December (UV index 2).

Average cloud cover in December
Cairo, NY

Average cloud cover in December - Cairo, NY
  • Average cloud cover in December: 50

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 33).

Average visibility in December
Cairo, NY

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

The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).

Cairo, New York, USA

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