December weather forecast
Ulysses, PA

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Weather in December

December, the first month of the winter in Ulysses, is also an icy month, with an average temperature varying between 24.1°F (-4.4°C) and 34.2°F (1.2°C).

Temperature

With December's onset, the weather shows a temperature decrease, transitioning from a frosty 43.7°F (6.5°C) in November to a wintry 34.2°F (1.2°C). Throughout the month of December, Ulysses expects an average low of 24.1°F (-4.4°C).

Humidity

In Ulysses, the average relative humidity in December is 86%.

Rainfall

In Ulysses, in December, during 11.8 rainfall days, 2.64" (67mm) of precipitation is typically accumulated. Throughout the year, in Ulysses, there are 174 rainfall days, and 30.83" (783mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Ulysses, Pennsylvania. In Ulysses, in December, snow falls for 18 days, with typically accumulated 7.95" (202mm) of snow. In Ulysses, during the entire year, snow falls for 86.8 days and aggregates up to 41.54" (1055mm) of snow.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year in Ulysses.
On the first day of the month, sunrise is at 7:19 am and sunset at 4:40 pm. On the last day of December, in Ulysses, sunrise is at 7:38 am and sunset at 4:50 pm EST.

Sunshine

The months with the least sunshine in Ulysses are January and December, with an average of 2.9h of sunshine.

UV index

The months with the lowest UV index in Ulysses are January and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 1 in December interprets into the following advice:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Avoiding the Sun during its peak radiation time around midday is a healthy practice. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
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Frequently asked questions

How cold is December in Ulysses?

In Ulysses, in December, the average high-temperature is 34.2°F (1.2°C), and the average low-temperature is 24.1°F (-4.4°C).

What is the average humidity in December in Ulysses?

In Ulysses, the average relative humidity in December is 86%.

How many days does it rain in December in Ulysses?

In Ulysses, Pennsylvania, during December, the rain falls for 11.8 days and regularly aggregates up to 2.64" (67mm) of precipitation.

How much does it snow in Ulysses in December?

In Ulysses, in December, during 18 snowfall days, 7.95" (202mm) of snow is typically accumulated.

What is the month with the shortest days in Ulysses?

December has the shortest days of the year in Ulysses, Pennsylvania, with an average of 9h and 12min of daylight.

How many hours of daylight does Ulysses have in December?

The average day length in December in Ulysses is 9h and 11min.

When are sunrise and sunset in December in Ulysses?

In December, on the first day of the month, sunrise is at 7:19 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 4:50 pm EST.

What is the month with the least sunshine in Ulysses?

The months with the least sunshine in Ulysses are January and December, with an average of 2.9h of sunshine.

How long on average sun shines in December in Ulysses?

In December, the average sunshine duration is 2.9h.

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

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

What is the UV index intensity in December in Ulysses?

The average daily maximum UV index in December in Ulysses, Pennsylvania, is 1. A UV Index reading of 2, and below, represents a low health risk from unsafe 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
Ulysses, PA

Average temperature in December - Ulysses, PA
  • Average high temperature in December: 34.2°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (28°F).

  • Average low temperature in December: 24.1°F

The month with the highest average low temperature is July (56.5°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).

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Average pressure in December
Ulysses, PA

Average pressure in December - Ulysses, PA
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in December
Ulysses, PA

Average wind speed in December - Ulysses, PA
  • Average wind speed in December: 8.5mph

The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

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Average humidity in December
Ulysses, PA

Average humidity in December - Ulysses, PA
  • Average humidity in December: 86%

The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are June and July (78%).

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Average rainfall in December
Ulysses, PA

Average rainfall in December - Ulysses, PA
  • Average rainfall in December: 2.64"

The wettest month (with the highest rainfall) is April (3.43").
The driest month (with the least rainfall) is September (2.17").

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Average rainfall days in December
Ulysses, PA

Average rainfall days in December - Ulysses, PA
  • Average rainfall days in December: 11.8 days

The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is February (8.9 days).

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Average snowfall in December
Ulysses, PA

Average snowfall in December - Ulysses, PA
  • Average snowfall in December: 7.95"

The month with the highest snowfall is February (10.2").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Ulysses, PA

Average snowfall days in December - Ulysses, PA
  • Average snowfall days in December: 18 days

The month with the highest number of snowfall days is January (20.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Ulysses, PA

Average daylight in December / Average sunshine in December - Ulysses, PA
  • 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 48min).
The months with the least sunshine are January and December (Average sunshine: 2h and 54min).

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Average sunshine days in December
Ulysses, PA

Average sunshine days in December - Ulysses, PA
  • Average sunshine days in December: 7 days

The month with the most sunshine days is September (13.5 days).
The month with the least sunshine days is February (5.9 days).

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Average UV index in December
Ulysses, PA

Average UV index in December - Ulysses, PA
  • Average UV index in December: 1

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 and December (UV index 1).

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Average cloud cover in December
Ulysses, PA

Average cloud cover in December - Ulysses, PA
  • Average cloud cover in December: 71

The month with the most cloud cover is January (Cloud cover 72).
The months with the least cloud cover are July and August (Cloud cover 41).

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Average visibility in December
Ulysses, PA

Average visibility in December - Ulysses, PA
  • Average visibility in December: 5mi

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

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Ulysses, Pennsylvania, USA

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