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 brings a reduction in the average high-temperature, from a cool 52.9°F (11.6°C) in November to a chilly 43.9°F (6.6°C). During the month of December, the temperature in Delta generally drops to a low average of 32.2°F (0.1°C).Humidity
In Delta, the average relative humidity in December is 78%.Rainfall
In Delta, in December, it is raining for 10.5 days, with typically 3.15" (80mm) of accumulated precipitation. In Delta, Pennsylvania, during the entire year, the rain falls for 170.1 days and collects up to 36.42" (925mm) of precipitation.Snowfall
Months with snowfall in Delta are January through May, November and December. In Delta, in December, during 3.8 snowfall days, 1.42" (36mm) of snow is typically accumulated. Throughout the year, there are 21.9 snowfall days, and 10.55" (268mm) of snow is accumulated.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year in Delta.On the first day of December, sunrise is at 7:07 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:51 pm EST.
Sunshine
In Delta, Pennsylvania, the average sunshine in December is 5.1h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index, 2 during December, leads to the following recommendations:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Experience reduced UV exposure by about half when donning a wide-brim hat. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Frequently asked questions
How cold does it get in Delta in December?
What is the average humidity in December in Delta?
How many days does it rain in December in Delta?
How much does it snow in Delta in December?
What is the month with the shortest days in Delta?
What is the average length of the day in December in Delta?
When is the sunrise / sunset in December in Delta?
How many hours of sunshine does Delta have in December?
What is the month with the lowest UV index in Delta?
How high is the UV index in December in Delta?
Average temperature in December
Delta, PA
- Average high temperature in December: 43.9°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (37.6°F).
- Average low temperature in December: 32.2°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).
Average pressure in December
Delta, 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
Delta, PA
- Average wind speed in December: 8.2mph
The windiest month (with the highest average wind speed) is March (9mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Delta, PA
- Average humidity in December: 78%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is April (74%).
Average rainfall in December
Delta, PA
- Average rainfall in December: 3.15"
The wettest month (with the highest rainfall) is August (4.49").
The driest month (with the least rainfall) is January (2.36").
Average rainfall days in December
Delta, PA
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in December
Delta, PA
- Average snowfall in December: 1.42"
The month with the highest snowfall is March (3.62").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Delta, PA
- Average snowfall days in December: 3.8 days
The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Delta, PA
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in December
Delta, PA
- Average sunshine days in December: 16.1 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is May (8.8 days).
Average UV index in December
Delta, 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
Delta, PA
- Average cloud cover in December: 46
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in December
Delta, PA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Delta, Pennsylvania, USA
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