Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
A change in temperatures is noted as November gives way to December, with average highs reducing from a frosty 49.8°F (9.9°C) to a cold 40.8°F (4.9°C). December nights in Walnut Bottom are marked by an average low-temperature of 28.9°F (-1.7°C).Humidity
In December, the average relative humidity in Walnut Bottom is 79%.Rainfall
In Walnut Bottom, in December, it is raining for 10.8 days, with typically 2.13" (54mm) of accumulated precipitation. In Walnut Bottom, during the entire year, the rain falls for 158 days and collects up to 28.03" (712mm) of precipitation.Snowfall
Months with snowfall in Walnut Bottom are January through May, October through December. In Walnut Bottom, during December, snow falls for 4.9 days and regularly aggregates up to 1.89" (48mm) of snow. Throughout the year, in Walnut Bottom, Pennsylvania, there are 29.2 snowfall days, and 15.31" (389mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:13 am and sunset at 4:44 pm. On the last day of December, in Walnut Bottom, sunrise is at 7:31 am and sunset at 4:54 pm EST.
Sunshine
In Walnut Bottom, the average sunshine in December is 4.6h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 2 suggests these recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Frequently asked questions
Is it cold in Walnut Bottom during December?
What is the average humidity in December in Walnut Bottom?
How much does it rain in Walnut Bottom in December?
How many days does it snow in December in Walnut Bottom?
What is the month with the shortest days in Walnut Bottom?
What is the average length of the day in December in Walnut Bottom?
When are sunrise and sunset in December in Walnut Bottom?
How many hours of sunshine does Walnut Bottom have in December?
When is the lowest UV index in Walnut Bottom?
What is the UV index intensity in December in Walnut Bottom?
Average temperature in December
Walnut Bottom, PA
- Average high temperature in December: 40.8°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34.7°F).
- Average low temperature in December: 28.9°F
The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure in December
Walnut Bottom, PA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Walnut Bottom, PA
- Average wind speed in December: 7.4mph
The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in December
Walnut Bottom, PA
- Average humidity in December: 79%
The months with the highest relative humidity are February, May and October (80%).
The months with the lowest relative humidity are April and July (76%).
Average rainfall in December
Walnut Bottom, PA
- Average rainfall in December: 2.13"
The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in December
Walnut Bottom, PA
- Average rainfall days in December: 10.8 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in December
Walnut Bottom, PA
- Average snowfall in December: 1.89"
The month with the highest snowfall is January (4.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Walnut Bottom, PA
- Average snowfall days in December: 4.9 days
The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Walnut Bottom, 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 24min).
- 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 24min).
Average sunshine days in December
Walnut Bottom, PA
- Average sunshine days in December: 16.1 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (11 days).
Average UV index in December
Walnut Bottom, PA
- Average UV index in December: 2
The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Walnut Bottom, 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 32).
Average visibility in December
Walnut Bottom, PA
- Average visibility in December: 6mi
The months with the highest visibility are April, June, July, August, November and December (6mi).
The months with the lowest visibility are January, February, March, May, September and October (5mi).
Walnut Bottom, Pennsylvania, USA
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