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
South Bethlehem in December undergoes a mild reduction in the average high-temperature, shifting from November's frosty 45.5°F (7.5°C) to an icy 34.9°F (1.6°C). In South Bethlehem, the average temperature during the nights of December drops to a freezing cold 24.3°F (-4.3°C).Humidity
In South Bethlehem, the average relative humidity in December is 82%.Rainfall
In South Bethlehem, during December, the rain falls for 10.4 days and regularly aggregates up to 2.36" (60mm) of precipitation. In South Bethlehem, during the entire year, the rain falls for 153.2 days and collects up to 30" (762mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In December, it is snowing for 8.2 days. Throughout December, 5.24" (133mm) of snow is accumulated. Throughout the year, there are 42.8 snowfall days, and 22.6" (574mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:06 am and sunset at 4:23 pm. On the last day of December, sunrise is at 7:25 am and sunset at 4:32 pm EST.
Sunshine
In December, the average sunshine is 4.4h.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 2 during December translates into these guidelines:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in South Bethlehem in December?
What is the month with the shortest days?
How many hours of daylight does South Bethlehem have in December?
What time are sunrise and sunset in December in South Bethlehem?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
South Bethlehem, NY
- Average high temperature in December: 34.9°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (29.1°F).
- Average low temperature in December: 24.3°F
The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).
Average pressure in December
South Bethlehem, NY
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
South Bethlehem, NY
- Average wind speed in December: 7.7mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
South Bethlehem, NY
- Average humidity in December: 82%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (75%).
Average rainfall in December
South Bethlehem, NY
- Average rainfall in December: 2.36"
The wettest month (with the highest rainfall) is July (3.43").
The driest month (with the least rainfall) is January (1.73").
Average rainfall days in December
South Bethlehem, NY
- Average rainfall days in December: 10.4 days
The months with the highest number of rainy days are May and July (17.1 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in December
South Bethlehem, NY
- Average snowfall in December: 5.24"
The month with the highest snowfall is February (5.79").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
South Bethlehem, NY
- Average snowfall days in December: 8.2 days
The months with the highest number of snowfall days are January and February (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
South Bethlehem, NY
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 4h and 2min
The months with the most sunshine are July and August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in December
South Bethlehem, NY
- Average sunshine days in December: 15.6 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (11.6 days).
Average UV index in December
South Bethlehem, NY
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
South Bethlehem, NY
- Average cloud cover in December: 54
The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in December
South Bethlehem, NY
- Average visibility in December: 6mi
The months with the highest visibility are April, June, November and December (6mi).
The months with the lowest visibility are January, February, March, May, July, August, September and October (5mi).
South Bethlehem, New York, USA
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