December weather forecastHouston, PA
December
Weather in December
December, the first month of the winter in Houston, is also a wintry month, with an average temperature varying between 40.1°F (4.5°C) and 28.6°F (-1.9°C).Temperature
December shows a mild decline in the average high-temperature, falling from November's frosty 49.1°F (9.5°C) to an icy 40.1°F (4.5°C). During December, Houston consistently records a temperature low averaging a subzero cold 28.6°F (-1.9°C).Humidity
In Houston, Pennsylvania, the average relative humidity in December is 83%.Rainfall
In Houston, Pennsylvania, in December, it is raining for 7.5 days, with typically 0.71" (18mm) of accumulated precipitation. Throughout the year, there are 120.6 rainfall days, and 9.49" (241mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, November and December. In Houston, in December, during 5.5 snowfall days, 0.43" (11mm) of snow is typically accumulated. In Houston, during the entire year, snow falls for 28.5 days and aggregates up to 2.95" (75mm) of snow.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:24 am and sunset at 4:55 pm. On the last day of December, sunrise is at 7:43 am and sunset at 5:05 pm EST.
Sunshine
In Houston, the average sunshine in December is 3.5h.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 of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Houston, PA
- Average high temperature in December: 40.1°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in December: 28.6°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in December
Houston, 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
Houston, PA
- Average wind speed in December: 7.3mph
The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in December
Houston, PA
- Average humidity in December: 83%
The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (76%).
Average rainfall in December
Houston, PA
- Average rainfall in December: 0.71"
The wettest month (with the highest rainfall) is July (1.06").
The driest month (with the least rainfall) is September (0.55").
Average rainfall days in December
Houston, PA
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is May (14 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in December
Houston, PA
- Average snowfall in December: 0.43"
The months with the highest snowfall are January and February (0.79").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Houston, PA
- Average snowfall days in December: 5.5 days
The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Houston, 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: 3h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in December
Houston, PA
- Average sunshine days in December: 19.6 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is May (13.5 days).
Average UV index in December
Houston, 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, March, November and December (UV index 2).
Average cloud cover in December
Houston, PA
- Average cloud cover in December: 64
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Houston, 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).
