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
Hills Terrace's December weather features a mild decline in high-temperatures, reducing from a chilly 47.3°F (8.5°C) in November to a cold 37.9°F (3.3°C). In December, Hills Terrace experiences an average nighttime temperature of 27.5°F (-2.5°C).Humidity
In December, the average relative humidity in Hills Terrace is 82%.Rainfall
In Hills Terrace, in December, during 8.9 rainfall days, 1.85" (47mm) of precipitation is typically accumulated. In Hills Terrace, during the entire year, the rain falls for 139.8 days and collects up to 24.69" (627mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Hills Terrace. In Hills Terrace, in December, during 4.9 snowfall days, 2.83" (72mm) of snow is typically accumulated. In Hills Terrace, during the entire year, snow falls for 33.6 days and aggregates up to 20.67" (525mm) of snow.Daylight
December has the shortest days of the year in Hills Terrace, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:10 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:47 pm EST.
Sunshine
In December, the average sunshine in Hills Terrace is 4.4h.UV index
The months with the lowest UV index in Hills Terrace are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.Note: In December, a regular UV index of 2 translates into these guidelines:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Frequently asked questions
Is December cold in Hills Terrace?
What is the average humidity in December in Hills Terrace?
How much does it rain in Hills Terrace in December?
How much does it snow in Hills Terrace in December?
What is the month with the shortest days in Hills Terrace?
How many hours of daylight does Hills Terrace have in December?
What time are sunrise and sunset in December in Hills Terrace?
How long on average sun shines in December in Hills Terrace?
What is the month with the lowest UV index in Hills Terrace?
What is the UV index intensity in December in Hills Terrace?
Average temperature in December
Hills Terrace, PA
- Average high temperature in December: 37.9°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.6°F).
- Average low temperature in December: 27.5°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in December
Hills Terrace, PA
- Average pressure in December: 30.09"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
Hills Terrace, PA
- Average wind speed in December: 7.7mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Hills Terrace, PA
- Average humidity in December: 82%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (77%).
Average rainfall in December
Hills Terrace, PA
- Average rainfall in December: 1.85"
The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in December
Hills Terrace, PA
- Average rainfall days in December: 8.9 days
The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in December
Hills Terrace, PA
- Average snowfall in December: 2.83"
The month with the highest snowfall is March (4.96").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Hills Terrace, PA
- Average snowfall days in December: 4.9 days
The month with the highest number of snowfall days is February (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Hills Terrace, PA
- Average daylight in December: 9h and 2min
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 18min).
- Average sunshine in December: 4h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 18min).
Average sunshine days in December
Hills Terrace, PA
- Average sunshine days in December: 18.5 days
The months with the most sunshine days are January and November (19.6 days).
The month with the least sunshine days is May (11.2 days).
Average UV index in December
Hills Terrace, 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
Hills Terrace, PA
- Average cloud cover in December: 54
The months with the most cloud cover are February and December (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in December
Hills Terrace, 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).
Hills Terrace, Pennsylvania, USA
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