December weather forecast
Bath, PA

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Weather in December

December, the first month of the winter in Bath, is still a cold month, with an average temperature ranging between max 39°F (3.9°C) and min 28°F (-2.2°C).

Temperature

The start of December comes with a reduction in the average high-temperature, receding from a frosty 48.6°F (9.2°C) in November to a wintry 39°F (3.9°C). Bath observes an average nighttime temperature of 28°F (-2.2°C) during December.

Humidity

In December, the average relative humidity is 81%.

Rainfall

In Bath, in December, it is raining for 13.1 days, with typically 3.19" (81mm) of accumulated precipitation. In Bath, during the entire year, the rain falls for 167 days and collects up to 33.5" (851mm) of precipitation.

Snowfall

Months with snowfall in Bath are January through May, October through December. In December, it is snowing for 6.1 days. Throughout December, 3.19" (81mm) of snow is accumulated. Throughout the year, there are 33.8 snowfall days, and 17.91" (455mm) of snow is accumulated.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:06 am and sunset at 4:34 pm. On the last day of December, in Bath, sunrise is at 7:25 am and sunset at 4:44 pm EST.

Sunshine

The average sunshine in December is 4.7h.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index, 1 during December, leads to the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Take note! UV radiation from the Sun can double in intensity due to snow reflection.

Frequently asked questions

How cold is it in December?

In Bath, in December, the average high-temperature is 39°F (3.9°C), and the average low-temperature is 28°F (-2.2°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, is calculated to be 89.6°F (32°C).

What is the average humidity in December?

The average relative humidity in December is 81%.

How many days does it rain in December?

In Bath, in December, it is raining for 13.1 days, with typically 3.19" (81mm) of accumulated precipitation.

How many days does it snow in December?

In Bath, Pennsylvania, during December, snow falls for 6.1 days and regularly aggregates up to 3.19" (81mm) of snow.

What is the month with the shortest days?

With an average of 9h and 18min of daylight, December has the shortest days of the year.

How many hours of daylight does Bath have in December?

In Bath, the average day length in December is 9h and 19min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:06 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:44 pm EST.

How many hours of sunshine does Bath have in December?

The average sunshine duration in December is 4.7h.

When is the lowest UV index?

With an average maximum UV index of 1, December is the month with the lowest UV index.

What is the UV index intensity in December?

In December, the average daily maximum UV index is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from 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
Bath, PA

Average temperature in December - Bath, PA
  • Average high temperature in December: 39°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in December: 28°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).

Average pressure in December
Bath, PA

Average pressure in December - Bath, 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).

Average wind speed in December
Bath, PA

Average wind speed in December - Bath, PA
  • Average wind speed in December: 7.6mph

The windiest month (with the highest average wind speed) is March (8.2mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in December
Bath, PA

Average humidity in December - Bath, PA
  • Average humidity in December: 81%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (76%).

Average rainfall in December
Bath, PA

Average rainfall in December - Bath, PA
  • Average rainfall in December: 3.19"

The wettest month (with the highest rainfall) is July (3.46").
The driest month (with the least rainfall) is September (2.01").

Average rainfall days in December
Bath, PA

Average rainfall days in December - Bath, PA
  • Average rainfall days in December: 13.1 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (9.9 days).

Average snowfall in December
Bath, PA

Average snowfall in December - Bath, PA
  • Average snowfall in December: 3.19"

The month with the highest snowfall is February (4.88").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Bath, PA

Average snowfall days in December - Bath, PA
  • Average snowfall days in December: 6.1 days

The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Bath, PA
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 4h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days in December
Bath, PA

Average sunshine days in December - Bath, PA
  • Average sunshine days in December: 14.8 days

The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is June (10.9 days).

Average UV index in December
Bath, PA

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

The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in December
Bath, PA

Average cloud cover in December - Bath, PA
  • Average cloud cover in December: 51

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 34).

Average visibility in December
Bath, PA

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

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

Bath, Pennsylvania, USA

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