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
Penn Yan, New York, in December experiences a subtle temperature decline, with average high-temperatures reducing from a frosty 45.1°F (7.3°C) in November to an icy 34.9°F (1.6°C). In Penn Yan, in December, the average low-temperature is a subzero cold 25.5°F (-3.6°C).Humidity
In December, the average relative humidity in Penn Yan is 84%.Rainfall
In Penn Yan, during December, the rain falls for 10.1 days and regularly aggregates up to 2.2" (56mm) of precipitation. Throughout the year, in Penn Yan, New York, there are 171.3 rainfall days, and 28.7" (729mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Penn Yan. In December, it is snowing for 16.1 days. Throughout December, 6.18" (157mm) of snow is accumulated. In Penn Yan, during the entire year, snow falls for 81.1 days and aggregates up to 31.61" (803mm) of snow.Daylight
December has the shortest days of the year in Penn Yan, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:19 am and sunset at 4:35 pm. On the last day of December, sunrise is at 7:38 am and sunset at 4:44 pm EST.
Sunshine
In Penn Yan, the average sunshine in December is 3.2h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Penn Yan, New York. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 1 during December leads to these instructions:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. To guard against the harmful effects of the Sun, minimize exposure during midday. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Penn Yan in December?
What is the average humidity in December in Penn Yan?
How much does it rain in Penn Yan in December?
How many days does it snow in December in Penn Yan?
What is the month with the shortest days in Penn Yan?
How many hours of daylight does Penn Yan have in December?
When is the sunrise / sunset in December in Penn Yan?
How many hours of sunshine does Penn Yan have in December?
What are the months with the lowest UV index in Penn Yan?
What is the UV index reading in December in Penn Yan?
Average temperature in December
Penn Yan, NY
- Average high temperature in December: 34.9°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (28.6°F).
- Average low temperature in December: 25.5°F
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (17.6°F).
Average pressure in December
Penn Yan, NY
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Penn Yan, NY
- Average wind speed in December: 9.4mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (6mph).
Average humidity in December
Penn Yan, NY
- Average humidity in December: 84%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is April (77%).
Average rainfall in December
Penn Yan, NY
- Average rainfall in December: 2.2"
The wettest month (with the highest rainfall) is October (3.03").
The driest month (with the least rainfall) is January (1.73").
Average rainfall days in December
Penn Yan, NY
- Average rainfall days in December: 10.1 days
The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in December
Penn Yan, NY
- Average snowfall in December: 6.18"
The month with the highest snowfall is February (7.13").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Penn Yan, NY
- Average snowfall days in December: 16.1 days
The month with the highest number of snowfall days is January (18.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Penn Yan, 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: 3h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 2h and 48min).
Average sunshine days in December
Penn Yan, NY
- Average sunshine days in December: 8.6 days
The month with the most sunshine days is September (13.5 days).
The month with the least sunshine days is February (5.5 days).
Average UV index in December
Penn Yan, NY
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Penn Yan, NY
- Average cloud cover in December: 68
The months with the most cloud cover are January and February (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in December
Penn Yan, NY
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August and October (6mi).
The months with the lowest visibility are January, February, March, September, November and December (5mi).
Penn Yan, New York, USA
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