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
Observing a mild shift, the average high-temperature during December reduces from November's fresh 51.4°F (10.8°C) to a cold 42.3°F (5.7°C). An average low-temperature of 31.1°F (-0.5°C) is recorded during the nights in December.Humidity
In Sidley, the average relative humidity in December is 78%.Rainfall
In December, in Sidley, the rain falls for 7.7 days. Throughout December, 1.14" (29mm) of precipitation is accumulated. In Sidley, during the entire year, the rain falls for 124.6 days and collects up to 14.25" (362mm) of precipitation.Snowfall
January through May, November and December are months with snowfall in Sidley. In Sidley, Pennsylvania, during December, snow falls for 2.2 days and regularly aggregates up to 0.79" (20mm) of snow. Throughout the year, in Sidley, there are 18.5 snowfall days, and 5.51" (140mm) of snow is accumulated.Daylight
December has the shortest days of the year in Sidley, Pennsylvania, with an average of 9h and 24min of daylight.On the first day of December in Sidley, sunrise is at 7:05 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:46 pm EST.
Sunshine
In Sidley, the average sunshine in December is 4.8h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Sidley. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The daily maximum UV index of 2 in December interprets into the following advice:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Frequently asked questions
Is it cold in Sidley during December?
What is the average humidity in December in Sidley?
How much does it rain in Sidley in December?
How much does it snow in Sidley in December?
What is the month with the shortest days in Sidley?
What is the average length of the day in December in Sidley?
When is the sunrise / sunset in December in Sidley?
How many hours of sunshine does Sidley have in December?
What is the month with the lowest UV index in Sidley?
How high is the UV index in December in Sidley?
Average temperature in December
Sidley, PA
- Average high temperature in December: 42.3°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in December: 31.1°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in December
Sidley, PA
- Average pressure in December: 30.1"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
Sidley, PA
- Average wind speed in December: 7.9mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Sidley, PA
- Average humidity in December: 78%
The months with the highest relative humidity are February and October (79%).
The months with the lowest relative humidity are April and July (73%).
Average rainfall in December
Sidley, PA
- Average rainfall in December: 1.14"
The wettest month (with the highest rainfall) is August (1.89").
The driest month (with the least rainfall) is January (0.79").
Average rainfall days in December
Sidley, PA
- Average rainfall days in December: 7.7 days
The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is January (5 days).
Average snowfall in December
Sidley, PA
- Average snowfall in December: 0.79"
The month with the highest snowfall is March (1.57").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Sidley, PA
- Average snowfall days in December: 2.2 days
The month with the highest number of snowfall days is January (5.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Sidley, 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 5min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in December
Sidley, PA
- Average sunshine days in December: 20.5 days
The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is June (13.3 days).
Average UV index in December
Sidley, 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, March, November and December (UV index 2).
Average cloud cover in December
Sidley, PA
- Average cloud cover in December: 49
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in December
Sidley, PA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Sidley, Pennsylvania, USA
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