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
Onset of December witnesses a reduction in the average high-temperature, falling from a chilly 45.3°F (7.4°C) in November to a cold 36.1°F (2.3°C). In the month of December, Harborcreek experiences a minor discrepancy from peak daytime temperatures, settling at an average low-temperature of 28.6°F (-1.9°C).Humidity
In Harborcreek, Pennsylvania, the average relative humidity in December is 84%.Rainfall
In December, the rain falls for 10.4 days. Throughout December, 2.24" (57mm) of precipitation is accumulated. Throughout the year, in Harborcreek, there are 169.5 rainfall days, and 25.87" (657mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In December, in Harborcreek, it is snowing for 15.3 days. Throughout December, 3.74" (95mm) of snow is accumulated. In Harborcreek, during the entire year, snow falls for 71.3 days and aggregates up to 18.54" (471mm) of snow.Daylight
The month with the shortest days in Harborcreek is December, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:29 am and sunset at 4:48 pm. On the last day of December, sunrise is at 7:48 am and sunset at 4:58 pm EST.
Sunshine
In December, the average sunshine in Harborcreek is 2.6h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Harborcreek. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: An average UV index of 1 in December transforms into this advice:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Frequently asked questions
How cold is December in Harborcreek?
What is the average humidity in December in Harborcreek?
How many days does it rain in December in Harborcreek?
How much does it snow in Harborcreek in December?
What is the month with the shortest days in Harborcreek?
How many hours of daylight does Harborcreek have in December?
What time are sunrise and sunset in December in Harborcreek?
How many hours of sunshine does Harborcreek have in December?
What is the month with the lowest UV index in Harborcreek?
What is the UV index reading in December in Harborcreek?
Average temperature in December
Harborcreek, PA
- Average high temperature in December: 36.1°F
The warmest month (with the highest average high temperature) is July (75°F).
The month with the lowest average high temperature is January (29.5°F).
- Average low temperature in December: 28.6°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in December
Harborcreek, PA
- 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
Harborcreek, PA
- Average wind speed in December: 12.6mph
The windiest month (with the highest average wind speed) is January (13mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in December
Harborcreek, PA
- Average humidity in December: 84%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are August, September, October and November (79%).
Average rainfall in December
Harborcreek, PA
- Average rainfall in December: 2.24"
The wettest month (with the highest rainfall) is October (2.72").
The driest month (with the least rainfall) is March (1.73").
Average rainfall days in December
Harborcreek, PA
- Average rainfall days in December: 10.4 days
The month with the highest number of rainy days is October (18.6 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in December
Harborcreek, PA
- Average snowfall in December: 3.74"
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
Harborcreek, PA
- Average snowfall days in December: 15.3 days
The month with the highest number of snowfall days is January (17.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Harborcreek, 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 4min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days in December
Harborcreek, PA
- Average sunshine days in December: 6.6 days
The month with the most sunshine days is May (11.7 days).
The month with the least sunshine days is January (5.7 days).
Average UV index in December
Harborcreek, PA
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Harborcreek, PA
- Average cloud cover in December: 73
The month with the most cloud cover is January (Cloud cover 77).
The months with the least cloud cover are July and August (Cloud cover 29).
Average visibility in December
Harborcreek, PA
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Harborcreek, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location
