December weather forecastDelphi Falls, NY
December
Weather in December
The first month of the winter, December, is also a wintry month in Delphi Falls, New York, with an average temperature varying between 33.1°F (0.6°C) and 24.3°F (-4.3°C).Temperature
The start of December signals a decrease in the average high-temperature, transitioning from a frosty 43.7°F (6.5°C) in November to an icy 33.1°F (0.6°C). Delphi Falls observes a consistent average low-temperature of 24.3°F (-4.3°C) throughout December nights.Humidity
In December, the average relative humidity is 87%.Rainfall
In Delphi Falls, in December, it is raining for 5.8 days, with typically 0.71" (18mm) of accumulated precipitation. Throughout the year, in Delphi Falls, there are 114.4 rainfall days, and 10.59" (269mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 11.8 days. Throughout December, 2.01" (51mm) of snow is accumulated. Throughout the year, there are 67.3 snowfall days, and 12.32" (313mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 6min of daylight.On the first day of December, sunrise is at 7:15 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 4:39 pm EST.
Sunshine
In December, the average sunshine in Delphi Falls is 2.9h.UV index
The months with the lowest UV index in Delphi Falls are January and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 1 in December converts into the following recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. To guard against the harmful effects of the Sun, minimize exposure during midday. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Delphi Falls, NY
- Average high temperature in December: 33.1°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in December: 24.3°F
The month with the highest average low temperature is July (58.3°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in December
Delphi Falls, 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 (29.93"Hg).
Average wind speed in December
Delphi Falls, NY
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in December
Delphi Falls, NY
- Average humidity in December: 87%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April and May (79%).
Average rainfall in December
Delphi Falls, NY
- Average rainfall in December: 0.71"
The wettest month (with the highest rainfall) is May (1.18").
The driest month (with the least rainfall) is September (0.63").
Average rainfall days in December
Delphi Falls, NY
- Average rainfall days in December: 5.8 days
The month with the highest number of rainy days is July (14.5 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in December
Delphi Falls, NY
- Average snowfall in December: 2.01"
The month with the highest snowfall is November (2.44").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Delphi Falls, NY
- Average snowfall days in December: 11.8 days
The month with the highest number of snowfall days is February (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Delphi Falls, NY
- Average daylight in December: 9h and 6min
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: 2h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 2h and 24min).
Average sunshine days in December
Delphi Falls, NY
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is October (18.2 days).
The months with the least sunshine days are February and July (12.9 days).
Average UV index in December
Delphi Falls, NY
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Delphi Falls, NY
- Average cloud cover in December: 71
The month with the most cloud cover is February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility in December
Delphi Falls, NY
- Average visibility in December: 6mi
The months with the highest visibility are April, May, October, November and December (6mi).
The months with the lowest visibility are January, February, March, June, July, August and September (5mi).





