December weather forecast
Highmount, NY

Share

Weather in December

December, the first month of the winter in Highmount, is also an icy month, with an average temperature varying between 32°F (0°C) and 20.8°F (-6.2°C).

Temperature

The average high-temperature decreases in December, shifting from a wintry 41.4°F (5.2°C) in November to a still cold 32°F (0°C). Highmount observes an average nighttime temperature of 20.8°F (-6.2°C) during December.

Humidity

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

Rainfall

In December, the rain falls for 10.1 days. Throughout December, 3.74" (95mm) of precipitation is accumulated. Throughout the year, in Highmount, 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. The months with the most snowfall are February and December, with an average 17.32" (440mm) of accumulated snow.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year.
On the first day of December in Highmount, New York, sunrise is at 7:07 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:36 pm EST.

Sunshine

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

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 1 in December translates into these instructions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Boost your sun resistance with garments that are densely woven yet spacious. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.

Frequently asked questions

How cold is it in December?

December temperatures in Highmount vary between a high-temperature of 32°F (0°C) and a low-temperature of 20.8°F (-6.2°C).

What is the most humid month?

The months with the highest humidity are February and December, with an average relative humidity of 88%.

What is the average humidity in December?

In December, the average relative humidity is 88%.

How much does it rain in December?

In December, the rain falls for 10.1 days. Throughout December, 3.74" (95mm) of precipitation is accumulated.

When does it snow the most?

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

How much does it snow in December?

In December, it is snowing for 21.5 days. Throughout December, 17.32" (440mm) of snow is accumulated.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 12min of daylight.

How many hours of daylight does Highmount have in December?

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

When are sunrise and sunset in December?

On the first day of December, sunrise is at 7:07 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:36 pm EST.

How long on average sun shines in December in Highmount?

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

When is the lowest UV index?

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

How high is the UV index in December?

In Highmount, the average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents 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
Highmount, NY

Average temperature in December - Highmount, NY
  • Average high temperature in December: 32°F

The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (26.1°F).

  • Average low temperature in December: 20.8°F

The month with the highest average low temperature is July (56.3°F).
The coldest month (with the lowest average low temperature) is January (13.8°F).

Average pressure in December
Highmount, NY

Average pressure in December - Highmount, NY
  • Average pressure in December: 30.07"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Highmount, NY

Average wind speed in December - Highmount, NY
  • Average wind speed in December: 7.6mph

The windiest months (with the highest average wind speed) are January and February (8.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in December
Highmount, NY

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

The 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 - Highmount, NY
  • Average rainfall in December: 3.74"

The wettest month (with the highest rainfall) is July (4.53").
The driest month (with the least rainfall) is September (2.99").

Average rainfall days in December
Highmount, NY

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

The 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 - Highmount, NY
  • Average snowfall in December: 17.32"

The months with the highest snowfall are February and December (17.32").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Highmount, NY

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).
The 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 / Average sunshine in December - Highmount, 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 5min

The month with the most sunshine is July (Average sunshine: 9h and 18min).
The month with the least sunshine is February (Average sunshine: 2h and 48min).

Average sunshine days in December
Highmount, NY

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

The months with the highest UV index are June, July and August (UV index 5).
The 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 - 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 - Highmount, NY
  • Average visibility in December: 4mi

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

Highmount, New York, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location