December weather forecastGraceville, PA
December
Weather in December
December, the first month of the winter in Graceville, is still a cold month, with an average temperature ranging between min 27.3°F (-2.6°C) and max 38.5°F (3.6°C).Temperature
Onset of December comes with a temperature decline, the average high falling from a frosty 48°F (8.9°C) in November to a wintry 38.5°F (3.6°C). In December, the recorded average low-temperature in Graceville is a subzero cold 27.3°F (-2.6°C).Humidity
The average relative humidity in December in Graceville is 81%.Rainfall
In Graceville, during December, the rain falls for 10.2 days and regularly aggregates up to 1.57" (40mm) of precipitation. In Graceville, during the entire year, the rain falls for 146.6 days and collects up to 19.84" (504mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Graceville, Pennsylvania, in December, during 6.7 snowfall days, 2.2" (56mm) of snow is typically accumulated. Throughout the year, in Graceville, there are 37.4 snowfall days, and 14.61" (371mm) of snow is accumulated.Daylight
The month with the shortest days in Graceville, Pennsylvania, is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:16 am and sunset at 4:48 pm. On the last day of December, sunrise is at 7:34 am and sunset at 4:57 pm EST.
Sunshine
In Graceville, 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 in Graceville. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.Note: In December, a regular UV index of 2 translates into these guidelines:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Graceville, PA
- Average high temperature in December: 38.5°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in December: 27.3°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in December
Graceville, PA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Graceville, PA
- Average wind speed in December: 7.6mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in December
Graceville, PA
- Average humidity in December: 81%
The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are April and July (76%).
Average rainfall in December
Graceville, PA
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is May (2.36").
The driest month (with the least rainfall) is November (1.18").
Average rainfall days in December
Graceville, PA
- Average rainfall days in December: 10.2 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (7.5 days).
Average snowfall in December
Graceville, PA
- Average snowfall in December: 2.2"
The month with the highest snowfall is February (3.74").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Graceville, PA
- Average snowfall days in December: 6.7 days
The month with the highest number of snowfall days is January (10.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Graceville, PA
- Average daylight in December: 9h and 24min
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 24min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in December
Graceville, PA
- Average sunshine days in December: 16.8 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (11 days).
Average UV index in December
Graceville, 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
Graceville, PA
- Average cloud cover in December: 54
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in December
Graceville, PA
- Average visibility in December: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
