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
December's onset corresponds with a shift in the average high-temperature, moving from a chilly 46.8°F (8.2°C) in November to a wintry 36.9°F (2.7°C). Throughout December, the average low-temperature in Saint Petersburg records at a subzero cold 26.1°F (-3.3°C).Humidity
In Saint Petersburg, the average relative humidity in December is 86%.Rainfall
In Saint Petersburg, in December, during 11.3 rainfall days, 2.52" (64mm) of precipitation is typically accumulated. Throughout the year, there are 176.8 rainfall days, and 34.57" (878mm) of precipitation is accumulated.Snowfall
Months with snowfall in Saint Petersburg, Pennsylvania, are January through May, October through December. In Saint Petersburg, in December, snow falls for 12.3 days, with typically accumulated 4.84" (123mm) of snow. Throughout the year, there are 63.1 snowfall days, and 25.75" (654mm) 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 7:25 am and sunset at 4:50 pm. On the last day of December, in Saint Petersburg, sunrise is at 7:43 am and sunset at 5:00 pm EST.
Sunshine
In Saint Petersburg, the average sunshine in December is 2.7h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 1 during December leads to these instructions:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Frequently asked questions
How cold is it in Saint Petersburg in December?
What is the average humidity in December in Saint Petersburg?
How many days does it rain in December in Saint Petersburg?
How much does it snow in Saint Petersburg in December?
What is the month with the shortest days in Saint Petersburg?
How many hours of daylight does Saint Petersburg have in December?
What time are sunrise and sunset in December in Saint Petersburg?
How long on average sun shines in December in Saint Petersburg?
What is the month with the lowest UV index in Saint Petersburg?
How high is the UV index in December in Saint Petersburg?
Average temperature in December
Saint Petersburg, PA
- Average high temperature in December: 36.9°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in December: 26.1°F
The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).
Average pressure in December
Saint Petersburg, 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
Saint Petersburg, PA
- Average wind speed in December: 7.6mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in December
Saint Petersburg, PA
- Average humidity in December: 86%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is July (78%).
Average rainfall in December
Saint Petersburg, PA
- Average rainfall in December: 2.52"
The wettest month (with the highest rainfall) is April (3.7").
The driest month (with the least rainfall) is November (2.17").
Average rainfall days in December
Saint Petersburg, PA
- Average rainfall days in December: 11.3 days
The month with the highest number of rainy days is July (20.1 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in December
Saint Petersburg, PA
- Average snowfall in December: 4.84"
The month with the highest snowfall is January (6.42").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Saint Petersburg, PA
- Average snowfall days in December: 12.3 days
The month with the highest number of snowfall days is January (17.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Saint Petersburg, PA
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 2h and 4min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days in December
Saint Petersburg, PA
- Average sunshine days in December: 11.5 days
The month with the most sunshine days is November (14 days).
The month with the least sunshine days is February (8.7 days).
Average UV index in December
Saint Petersburg, 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
Saint Petersburg, PA
- Average cloud cover in December: 71
The month with the most cloud cover is January (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in December
Saint Petersburg, PA
- Average visibility in December: 4mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February and December (4mi).
Saint Petersburg, Pennsylvania, USA
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