December weather forecast and climate
Jamesport, NY

The first month of the winter, December, is still a chilly month in Jamesport, New York, with average temperature varying between 45.3°F (7.4°C) and 38.3°F (3.5°C).

Temperature

In Jamesport, the average high-temperature in December slightly decreases, from a cool 52.9°F (11.6°C) in November, to a chilly 45.3°F (7.4°C). In December, the average low-temperature is 38.3°F (3.5°C).

Humidity

In December, the average relative humidity in Jamesport is 74%.

Rainfall

The month with the most rainfall in Jamesport is December when the rain falls for 12.9 days and typically aggregates up to 4.06" (103mm) of precipitation.

Snowfall

January through March, May and December are months with snowfall in Jamesport. December is the first month it typically snows in Jamesport. Throughout December, in the average 2.3 snowfall days, it receives 0.91" (23mm) of snow. In Jamesport, during the entire year, snow falls for 15.4 days, and aggregates up to 5.43" (138mm) of snow.

Daylight

With an average of 9.3h of daylight, December has the shortest days of the year in Jamesport, New York.

Sunshine

With an average of 4.7h of sunshine, December has the least sunshine of the year.

UV index

Months with the lowest UV index in Jamesport are January through March and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 2 transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. 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 Jamesport?

In Jamesport, in December, the average high-temperature is 45.3°F (7.4°C), and the average low-temperature is 38.3°F (3.5°C).

What is the average humidity in December in Jamesport?

The average relative humidity in December in Jamesport, New York, is 74%.

How many days does it rain in December in Jamesport?

In Jamesport, New York, during December, the rain falls for 12.9 days and regularly aggregates up to 4.06" (103mm) of precipitation.

What is the rainiest month in Jamesport?

December is the month with the most rainfall. Rain falls for 12.9 days and accumulates 4.06" (103mm) of precipitation.

When does it start to snow in Jamesport?

December is the first month it typically snows in Jamesport. Throughout December, in the average 2.3 snowfall days, it receives 0.91" (23mm) of snow.

What is the month with the shortest days in Jamesport?

The month with the shortest days in Jamesport is December, with an average of 9.3h of daylight.

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

The average length of the day in December in Jamesport is 9.3h.

What is the month with the least sunshine in Jamesport?

With an average of 4.7h of sunshine, December has the least sunshine of the year in Jamesport.

How long on average sun shines in December in Jamesport?

In December, the average sunshine is 4.7h.

When is the lowest UV index in Jamesport?

January through March and December, with an average maximum UV index of 2, are months with the lowest UV index in Jamesport.

How high is the UV index in December in Jamesport?

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from the exposure to the Sun's UV rays.
Average temperature in December - Jamesport, NY
  • Average high temperature in December: 45.3°F

The warmest month (with the highest average high temperature) is July (75.9°F).
The month with the lowest average high temperature is January (39°F).

  • Average low temperature in December: 38.3°F

Months with the highest average low temperature are July and August (71.2°F).
The coldest month (with the lowest average low temperature) is January (31.3°F).

Average pressure in December - Jamesport, NY
  • Average pressure in December: 30.05"

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

Average wind speed in December - Jamesport, NY
  • Average wind speed in December: 15.6mph

The windiest month (with the highest average wind speed) is January (15.9mph).
The calmest month (with the lowest average wind speed) is July (10.5mph).

Average humidity in December - Jamesport, NY
  • Average humidity in December: 74%

Months with the highest relative humidity are May and June (81%).
The month with the lowest relative humidity is November (72%).

Average rainfall in December - Jamesport, NY
  • Average rainfall in December: 4.06"

The wettest month (with the highest rainfall) is December (4.06").
The driest month (with the least rainfall) is September (2.01").

Average rainfall days in December - Jamesport, NY
  • Average rainfall days in December: 12.9 days

The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is January (9.7 days).

Average snowfall in December - Jamesport, NY
  • Average snowfall in December: 0.91"

The month with the highest snowfall is March (1.69").
Months with the least snowfall are April, June, July, August, September, October and November (0").

Average snowfall days in December - Jamesport, NY
  • Average snowfall days in December: 2.3 days

The month with the highest number of snowfall days is January (5.2 days).
Months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in December / Average sunshine in December - Jamesport, NY
  • Average daylight in December: 9.3h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in December: 4.7h

The month with the most sunshine is July (Average sunshine: 10.7h).
The month with the least sunshine is December (Average sunshine: 4.7h).

Average sunshine days in December - Jamesport, NY
  • Average sunshine days in December: 14 days

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is February (12.3 days).

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

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, March and December (UV index 2).

Average cloud cover in December - Jamesport, NY
  • Average cloud cover in December: 51

The month with the most cloud cover is December (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 27).

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

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