December weather forecastOno, PA
December
Weather in December
The first month of the winter, December, is also an icy month in Ono, Pennsylvania, with an average temperature ranging between max 39.9°F (4.4°C) and min 28.8°F (-1.8°C).Temperature
Ono's December weather features a mild decline in high-temperatures, reducing from a frosty 49.5°F (9.7°C) in November to a wintry 39.9°F (4.4°C). During the month of December, the temperature generally drops to a low average of 28.8°F (-1.8°C).Humidity
The average relative humidity in December is 80%.Rainfall
In Ono, in December, it is raining for 11 days, with typically 2.68" (68mm) of accumulated precipitation. Throughout the year, there are 166.3 rainfall days, and 34.53" (877mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Ono, during December, snow falls for 5.9 days and regularly aggregates up to 1.97" (50mm) of snow. In Ono, during the entire year, snow falls for 32.4 days and aggregates up to 16.69" (424mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of December in Ono, sunrise is at 7:10 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 4:49 pm EST.
Sunshine
In Ono, the average sunshine in December is 4.4h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ono, PA
- Average high temperature in December: 39.9°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.6°F).
- Average low temperature in December: 28.8°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in December
Ono, 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
Ono, PA
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is March (8.7mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Ono, PA
- Average humidity in December: 80%
The months with the highest relative humidity are February, May, June and October (81%).
The month with the lowest relative humidity is April (76%).
Average rainfall in December
Ono, PA
- Average rainfall in December: 2.68"
The wettest months (with the highest rainfall) are May and July (3.58").
The driest month (with the least rainfall) is September (2.32").
Average rainfall days in December
Ono, PA
- Average rainfall days in December: 11 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in December
Ono, PA
- Average snowfall in December: 1.97"
The month with the highest snowfall is January (5.08").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Ono, PA
- Average snowfall days in December: 5.9 days
The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Ono, PA
- Average daylight in December: 9h and 18min
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 18min).
- Average sunshine in December: 4h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in December
Ono, PA
- Average sunshine days in December: 14.8 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is May (10.1 days).
Average UV index in December
Ono, PA
- Average UV index in December: 2
The month with the highest UV index is June (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
Ono, PA
- Average cloud cover in December: 53
The months with the most cloud cover are February and December (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in December
Ono, PA
- Average visibility in December: 5mi
The months with the highest visibility are March, April, June, July and November (6mi).
The months with the lowest visibility are January, February, May, August, September, October and December (5mi).
