December weather forecast and climate
Highmount, NY

The first month of the winter, December, is also a wintry month in Highmount, New York, with average temperature fluctuating between 20.8°F (-6.2°C) and 32°F (0°C).

Temperature

In December, the average high-temperature decreases, from a cold 41.4°F (5.2°C) in November, to a still wintry 32°F (0°C). The average low-temperature, in December, is 20.8°F (-6.2°C).

Humidity

Months with the highest humidity in Highmount, New York, are February and December, with an average relative humidity of 88%.

Rainfall

In Highmount, during December, the rain falls for 10.1 days and regularly aggregates up to 3.74" (95mm) of precipitation. Throughout the year, there are 169.5 rainfall days, and 44.17" (1122mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Highmount. Months with the most snowfall in Highmount are February and December, with an average 17.32" (440mm) of accumulated snow.

Daylight

December has the shortest days of the year in Highmount, with an average of 9.2h of daylight.

Sunshine

In December, the average sunshine is 2.9h.

UV index

Months with the lowest UV index in Highmount, New York, are January through March, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from the exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 1 transform into the following instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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 Highmount?

In Highmount, in December, the average high-temperature is 32°F (0°C), and the average low-temperature is 20.8°F (-6.2°C).

What are the most humid months in Highmount?

February and December, with an average relative humidity of 88%, are most humid months.

What is the average humidity in December in Highmount?

In December, the average relative humidity is 88%.

How much does it rain in Highmount in December?

In Highmount, New York, in December, during 10.1 rainfall days, 3.74" (95mm) of precipitation is typically accumulated.

How many days does it snow in December in Highmount?

In Highmount, New York, in December, snow falls for 21.5 days, with typically accumulated 17.32" (440mm) of snow.

What is the snowiest month in Highmount?

Months with the most snowfall in Highmount are February and December, with an average 17.32" (440mm) of accumulated snow.

What is the month with the shortest days in Highmount?

The month with the shortest days in Highmount, New York, is December, with an average of 9.2h of daylight.

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

The average length of the day in December in Highmount is 9.2h.

How long on average sun shines in December in Highmount?

In Highmount, New York, the average sunshine in December is 2.9h.

What is the month with the lowest UV index in Highmount?

January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Highmount.

What is the UV index intensity in December in Highmount?

In December, the average daily maximum UV index is 1. A UV Index of 2, and less, symbolizes a low health threat from unsafe exposure to the Sun's UV rays.
Average temperature in December - Highmount, NY
  • Average high temperature in December: 0°C

The warmest month (with the highest average high temperature) is July (24.8°C).
The month with the lowest average high temperature is January (-3.3°C).

  • Average low temperature in December: -6.2°C

The month with the highest average low temperature is July (13.5°C).
The coldest month (with the lowest average low temperature) is January (-10.1°C).

Average pressure in December - Highmount, NY
  • Average pressure in December: 1018.2mbar

The month with the highest atmospheric pressure is November (1019.2mbar).
The month with the lowest atmospheric pressure is June (1013.5mbar).

Average wind speed in December - Highmount, NY
  • Average wind speed in December: 12.3km/h

The windiest month (with the highest average wind speed) is January (13.4km/h).
The calmest month (with the lowest average wind speed) is August (8.1km/h).

Average humidity in December - Highmount, NY
  • Average humidity in December: 88%

Months with the highest relative humidity are February and December (88%).
The month with the lowest relative humidity is July (80%).

Average rainfall in December - Highmount, NY
  • Average rainfall in December: 95mm

The wettest month (with the highest rainfall) is July (115mm).
The driest month (with the least rainfall) is September (76mm).

Average rainfall days in December - Highmount, NY
  • Average rainfall days in December: 10.1 days

Months with the highest number of rainy days are May and July (19.9 days).
The month with the least rainy days is February (6.4 days).

Average snowfall in December - Highmount, NY
  • Average snowfall in December: 440mm

Months with the highest snowfall are February and December (440mm).
Months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December - Highmount, NY
  • Average snowfall days in December: 21.5 days

The month with the highest number of snowfall days is January (22.1 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December / Average sunshine in December - Highmount, NY
  • Average daylight in December: 9.2h

The month with the longest days is June (Average daylight: 15.2h).
The month with the shortest days is December (Average daylight: 9.2h).

  • Average sunshine in December: 2.9h

The month with the most sunshine is July (Average sunshine: 9.3h).
The month with the least sunshine is February (Average sunshine: 2.8h).

Average sunshine days in December - Highmount, NY
  • Average sunshine days in December: 6.9 days

The month with the most sunshine days is September (13.8 days).
The month with the least sunshine days is February (5.4 days).

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

Months with the highest UV index are June, July and August (UV index 5).
Months with the lowest UV index are January, February, March, November and December (UV index 1).

Average cloud cover in December - Highmount, 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 46).

Average visibility in December - Highmount, NY
  • Average visibility in December: 7km

The month with the highest visibility is June (8km).
The month with the lowest visibility is February (6km).