December weather forecastMatamoras, PA
December
Weather in December
The first month of the winter, December, is also an icy month in Matamoras, Pennsylvania, with an average temperature fluctuating between 26.1°F (-3.3°C) and 37.6°F (3.1°C).Temperature
The arrival of December corresponds with a temperature reduction, down from November's chilly 47.8°F (8.8°C) to an icy 37.6°F (3.1°C). In Matamoras, December nights cool down to an average of 26.1°F (-3.3°C).Humidity
February and December, with an average relative humidity of 83%, are the most humid months.Rainfall
In December, the rain falls for 11.5 days. Throughout December, 1.34" (34mm) of precipitation is accumulated. In Matamoras, during the entire year, the rain falls for 150.5 days and collects up to 19.37" (492mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Matamoras, Pennsylvania, during December, snow falls for 6.6 days and regularly aggregates up to 1.34" (34mm) of snow. In Matamoras, during the entire year, snow falls for 36.1 days and aggregates up to 9.8" (249mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 7:05 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:39 pm EST.
Sunshine
In Matamoras, the average sunshine in December is 4.6h.UV index
The months with the lowest UV index in Matamoras, Pennsylvania, are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In December, a regular UV index of 2 translates into these guidelines:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Matamoras, PA
- Average high temperature in December: 37.6°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (32°F).
- Average low temperature in December: 26.1°F
The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in December
Matamoras, PA
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Matamoras, PA
- Average wind speed in December: 7mph
The windiest month (with the highest average wind speed) is March (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Matamoras, PA
- Average humidity in December: 83%
The months with the highest relative humidity are February and December (83%).
The months with the lowest relative humidity are April and July (77%).
Average rainfall in December
Matamoras, PA
- Average rainfall in December: 1.34"
The wettest month (with the highest rainfall) is May (2.36").
The driest month (with the least rainfall) is January (1.02").
Average rainfall days in December
Matamoras, PA
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is May (16.7 days).
The months with the least rainy days are January and February (8.6 days).
Average snowfall in December
Matamoras, PA
- Average snowfall in December: 1.34"
The month with the highest snowfall is February (3.07").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Matamoras, PA
- Average snowfall days in December: 6.6 days
The month with the highest number of snowfall days is February (10 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Matamoras, PA
- Average daylight in December: 9h and 12min
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 12min).
- Average sunshine in December: 4h and 36min
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 12min).
Average sunshine days in December
Matamoras, PA
- Average sunshine days in December: 16.1 days
The month with the most sunshine days is October (17.4 days).
The months with the least sunshine days are April and May (11.8 days).
Average UV index in December
Matamoras, 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
Matamoras, PA
- Average cloud cover in December: 52
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in December
Matamoras, PA
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (5mi).
The month with the lowest visibility is September (4mi).
