December weather forecastFirthcliffe, NY
December
Weather in December
The first month of the winter, December, is also a wintry month in Firthcliffe, New York, with an average temperature varying between 38.5°F (3.6°C) and 26.8°F (-2.9°C).Temperature
Firthcliffe's weather changes with the onset of December, slightly falling from a frosty 48.4°F (9.1°C) in November to a cold 38.5°F (3.6°C). Firthcliffe reports a consistent average low-temperature of 26.8°F (-2.9°C) throughout December nights.Humidity
The months with the highest humidity are February, October and December, with an average relative humidity of 81%.Rainfall
In Firthcliffe, in December, it is raining for 8.7 days, with typically 2.52" (64mm) of accumulated precipitation. In Firthcliffe, during the entire year, the rain falls for 135.6 days and collects up to 25.39" (645mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Firthcliffe. In Firthcliffe, in December, during 4.8 snowfall days, 3.03" (77mm) of snow is typically accumulated. Throughout the year, in Firthcliffe, there are 27.2 snowfall days, and 17.2" (437mm) of snow is accumulated.Daylight
December has the shortest days of the year in Firthcliffe, with an average of 9h and 12min of daylight.On the first day of December in Firthcliffe, sunrise is at 7:03 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:36 pm EST.
Sunshine
In Firthcliffe, the average sunshine in December is 4.6h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Firthcliffe, New York. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In December, a regular UV index of 2 translates into these guidelines:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Firthcliffe, NY
- Average high temperature in December: 38.5°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (32.9°F).
- Average low temperature in December: 26.8°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 (20.3°F).
Average pressure in December
Firthcliffe, 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
Firthcliffe, NY
- Average wind speed in December: 6mph
The windiest months (with the highest average wind speed) are February and March (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in December
Firthcliffe, NY
- Average humidity in December: 81%
The months with the highest relative humidity are February, October and December (81%).
The month with the lowest relative humidity is April (74%).
Average rainfall in December
Firthcliffe, NY
- Average rainfall in December: 2.52"
The wettest month (with the highest rainfall) is October (2.64").
The driest months (with the least rainfall) are January and September (1.54").
Average rainfall days in December
Firthcliffe, NY
- Average rainfall days in December: 8.7 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (5.6 days).
Average snowfall in December
Firthcliffe, NY
- Average snowfall in December: 3.03"
The month with the highest snowfall is January (4.37").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Firthcliffe, NY
- Average snowfall days in December: 4.8 days
The month with the highest number of snowfall days is February (6.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Firthcliffe, NY
- Average daylight in December: 9h and 12min
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 12min).
- Average sunshine in December: 4h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in December
Firthcliffe, NY
- Average sunshine days in December: 18.7 days
The month with the most sunshine days is January (20.6 days).
The months with the least sunshine days are May and June (13.5 days).
Average UV index in December
Firthcliffe, NY
- Average UV index in December: 2
The months with the highest UV index are June 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
Firthcliffe, NY
- Average cloud cover in December: 51
The months with the most cloud cover are February, March and December (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in December
Firthcliffe, NY
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
