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
Olanta observes a minor decrease in the average high-temperature with the arrival of December, falling from November's frosty 45.7°F (7.6°C) to a wintry 36.7°F (2.6°C). December's nights observe an average temperature of 25.7°F (-3.5°C).Humidity
In December, the average relative humidity is 86%.Rainfall
In Olanta, in December, during 8.5 rainfall days, 1.46" (37mm) of precipitation is typically accumulated. In Olanta, during the entire year, the rain falls for 136.6 days and collects up to 18.54" (471mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Olanta, during December, snow falls for 8.4 days and regularly aggregates up to 2.24" (57mm) of snow. Throughout the year, there are 46.2 snowfall days, and 14.45" (367mm) 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 December in Olanta, sunrise is at 7:19 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 4:56 pm EST.
Sunshine
In Olanta, the average sunshine in December is 2.8h.UV index
The month with the lowest UV index in Olanta 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 radiation for the average person.Note: The maximum daily UV index of 1 in December converts into the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December in Olanta?
When are sunrise and sunset in December?
How many hours of sunshine does Olanta have in December?
When is the lowest UV index?
How high is the UV index in December in Olanta?
Average temperature in December
Olanta, PA
- Average high temperature in December: 36.7°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 (30.2°F).
- Average low temperature in December: 25.7°F
The month with the highest average low temperature is July (57.9°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in December
Olanta, 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 (29.95"Hg).
Average wind speed in December
Olanta, PA
- Average wind speed in December: 8.7mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in December
Olanta, PA
- Average humidity in December: 86%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is July (77%).
Average rainfall in December
Olanta, PA
- Average rainfall in December: 1.46"
The wettest month (with the highest rainfall) is May (2.28").
The driest months (with the least rainfall) are January and November (1.06").
Average rainfall days in December
Olanta, PA
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in December
Olanta, PA
- Average snowfall in December: 2.24"
The month with the highest snowfall is February (3.82").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Olanta, PA
- Average snowfall days in December: 8.4 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Olanta, 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 5min
The months with the most sunshine are July and August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in December
Olanta, PA
- Average sunshine days in December: 15.8 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in December
Olanta, 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
Olanta, PA
- Average cloud cover in December: 72
The month with the most cloud cover is January (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 40).
Average visibility in December
Olanta, PA
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Olanta, Pennsylvania, USA
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