December weather forecast and climate
Fairport, NY

December, the first month of the winter, in Fairport, is also a wintry month, with average temperature ranging between min 27.1°F (-2.7°C) and max 36°F (2.2°C).

Temperature

In December, the average high-temperature drops, from a chilly 46.2°F (7.9°C) in November, to a wintry 36°F (2.2°C). In Fairport, New York, the average low-temperature is 27.1°F (-2.7°C).

Humidity

In Fairport, the average relative humidity is 83%.

Rainfall

In December, the rain falls for 10.2 days. Throughout December, 1.85" (47mm) of precipitation is accumulated. Throughout the year, in Fairport, there are 163.3 rainfall days, and 23.7" (602mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In December, in Fairport, it is snowing for 15 days. Throughout December, 4.13" (105mm) of snow is accumulated. Throughout the year, there are 70.8 snowfall days, and 20.16" (512mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9.1h of daylight.

Sunshine

In Fairport, the average sunshine in December is 3h.

UV index

Months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 1 transform into the following instructions:
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 Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in December in Fairport?

In Fairport, in December, the average high-temperature is 36°F (2.2°C), and the average low-temperature is 27.1°F (-2.7°C).

What is the average humidity in December in Fairport?

In December, the average relative humidity in Fairport, New York, is 83%.

How many days does it rain in December in Fairport?

In December, the rain falls for 10.2 days. Throughout December, 1.85" (47mm) of precipitation is accumulated.

How many days does it snow in December in Fairport?

In Fairport, during December, snow falls for 15 days and regularly aggregates up to 4.13" (105mm) of snow.

What is the month with the shortest days in Fairport?

The month with the shortest days is December, with an average of 9.1h of daylight.

What is the average length of the day in December in Fairport?

In December, the average length of the day in Fairport, New York, is 9.1h.

How many hours of sunshine does Fairport have in December?

The average sunshine in December in Fairport, New York, is 3h.

What are the months with the lowest UV index in Fairport?

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

How high is the UV index in December in Fairport?

The average daily maximum UV index in December in Fairport is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to the Sun's UV rays.
Average temperature in December - Fairport, NY
  • Average high temperature in December: 36°F

The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in December: 27.1°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).

Average pressure in December - Fairport, NY
  • Average pressure in December: 30.06"

The month with the highest atmospheric pressure is November (30.09").
The month with the lowest atmospheric pressure is June (29.92").

Average wind speed in December - Fairport, NY
  • Average wind speed in December: 10.6mph

The windiest months (with the highest average wind speed) are January and February (11.4mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).

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

Months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is September (76%).

Average rainfall in December - Fairport, NY
  • Average rainfall in December: 1.85"

The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is January (1.26").

Average rainfall days in December - Fairport, NY
  • Average rainfall days in December: 10.2 days

The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is February (6.8 days).

Average snowfall in December - Fairport, NY
  • Average snowfall in December: 4.13"

The month with the highest snowfall is February (5.28").
Months with the least snowfall are June, July, August and September (0").

Average snowfall days in December - Fairport, NY
  • Average snowfall days in December: 15 days

The month with the highest number of snowfall days is January (17.6 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December / Average sunshine in December - Fairport, NY
  • Average daylight in December: 9.1h

The month with the longest days is June (Average daylight: 15.3h).
The month with the shortest days is December (Average daylight: 9.1h).

  • Average sunshine in December: 3h

The month with the most sunshine is July (Average sunshine: 10.6h).
The month with the least sunshine is January (Average sunshine: 2.6h).

Average sunshine days in December - Fairport, NY
  • Average sunshine days in December: 8.1 days

Months with the most sunshine days are May and September (12.8 days).
The month with the least sunshine days is February (6.3 days).

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

The month with the highest UV index is July (UV index 6).
Months with the lowest UV index are January and December (UV index 1).

Average cloud cover in December - Fairport, NY
  • Average cloud cover in December: 70

The month with the most cloud cover is January (Cloud cover 74).
Months with the least cloud cover are July and August (Cloud cover 29).

Average visibility in December - Fairport, NY
  • Average visibility in December: 6mi

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