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
With the arrival of December, Kirkwood notices a mild change in the average high-temperature, sliding from November's cool 51.6°F (10.9°C) to a frosty 43.2°F (6.2°C). The average nighttime temperature lowers to a freezing cold 31.3°F (-0.4°C) throughout December.Humidity
The average relative humidity in December is 79%.Rainfall
In Kirkwood, Pennsylvania, during December, the rain falls for 8.6 days and regularly aggregates up to 1.18" (30mm) of precipitation. Throughout the year, there are 130.4 rainfall days, and 16.3" (414mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In December, it is snowing for 2.5 days. Throughout December, 0.59" (15mm) of snow is accumulated. Throughout the year, in Kirkwood, Pennsylvania, there are 16.2 snowfall days, and 5.35" (136mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:07 am and sunset at 4:40 pm. On the last day of December, sunrise is at 7:25 am and sunset at 4:49 pm EST.
Sunshine
The average sunshine in December is 5h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Kirkwood, Pennsylvania. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The daily maximum UV index of 2 in December interprets into the following advice:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Boost your sun resistance with garments that are densely woven yet spacious. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Frequently asked questions
Is it cold in Kirkwood during December?
What is the average humidity in December in Kirkwood?
How many days does it rain in December in Kirkwood?
How many days does it snow in December in Kirkwood?
What is the month with the shortest days in Kirkwood?
What is the average length of the day in December in Kirkwood?
When are sunrise and sunset in December in Kirkwood?
How long on average sun shines in December in Kirkwood?
What are the months with the lowest UV index in Kirkwood?
How high is the UV index in December in Kirkwood?
Average temperature in December
Kirkwood, PA
- Average high temperature in December: 43.2°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 (36.7°F).
- Average low temperature in December: 31.3°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).
Average pressure in December
Kirkwood, PA
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Kirkwood, PA
- Average wind speed in December: 8.3mph
The windiest months (with the highest average wind speed) are January, February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Kirkwood, PA
- Average humidity in December: 79%
The month with the highest relative humidity is May (81%).
The months with the lowest relative humidity are January, March, April and November (76%).
Average rainfall in December
Kirkwood, PA
- Average rainfall in December: 1.18"
The wettest month (with the highest rainfall) is August (2.36").
The driest month (with the least rainfall) is January (0.91").
Average rainfall days in December
Kirkwood, PA
- Average rainfall days in December: 8.6 days
The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is January (6 days).
Average snowfall in December
Kirkwood, PA
- Average snowfall in December: 0.59"
The month with the highest snowfall is March (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Kirkwood, PA
- Average snowfall days in December: 2.5 days
The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Kirkwood, 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: 5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Kirkwood, PA
- Average sunshine days in December: 19.6 days
The month with the most sunshine days is November (21.8 days).
The month with the least sunshine days is June (13.2 days).
Average UV index in December
Kirkwood, PA
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Kirkwood, PA
- Average cloud cover in December: 46
The months with the most cloud cover are February, March and May (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in December
Kirkwood, PA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, October, November and December (6mi).
The months with the lowest visibility are May, August and September (5mi).
Kirkwood, Pennsylvania, USA
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