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
The shift from November to December corresponds with a decrease in the average high-temperature, down to a wintry 32.9°F (0.5°C) from a chilly 43.2°F (6.2°C). During December nights, Plymouth records an average temperature of 23.2°F (-4.9°C).Humidity
In December, the average relative humidity is 87%.Rainfall
In December, the rain falls for 11.7 days. Throughout December, 2.8" (71mm) of precipitation is accumulated. In Plymouth, during the entire year, the rain falls for 171.6 days and collects up to 34.09" (866mm) of precipitation.Snowfall
Months with snowfall in Plymouth are January through May, October through December. In Plymouth, New York, during December, snow falls for 17.2 days and regularly aggregates up to 8.7" (221mm) of snow. Throughout the year, in Plymouth, there are 90.9 snowfall days, and 44.8" (1138mm) of snow is accumulated.Daylight
The month with the shortest days in Plymouth is December, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:13 am and sunset at 4:30 pm. On the last day of December, sunrise is at 7:32 am and sunset at 4:39 pm EST.
Sunshine
The average sunshine in December is 2.9h.UV index
The months with the lowest UV index in Plymouth are January, February, November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: A daily maximum UV index of 1 in December translates into the following instructions:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Plymouth?
What is the average humidity in December in Plymouth?
How many days does it rain in December in Plymouth?
How much does it snow in Plymouth in December?
What is the month with the shortest days in Plymouth?
What is the average length of the day in December in Plymouth?
When are sunrise and sunset in December in Plymouth?
How long on average sun shines in December in Plymouth?
What are the months with the lowest UV index in Plymouth?
What is the UV index reading in December in Plymouth?
Average temperature in December
Plymouth, NY
- Average high temperature in December: 32.9°F
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (26.8°F).
- Average low temperature in December: 23.2°F
The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).
Average pressure in December
Plymouth, 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
Plymouth, NY
- Average wind speed in December: 9.7mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in December
Plymouth, 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
Plymouth, NY
- Average rainfall in December: 2.8"
The wettest month (with the highest rainfall) is May (3.27").
The driest month (with the least rainfall) is September (2.28").
Average rainfall days in December
Plymouth, NY
- Average rainfall days in December: 11.7 days
The months with the highest number of rainy days are May and July (18.3 days).
The month with the least rainy days is February (8.2 days).
Average snowfall in December
Plymouth, NY
- Average snowfall in December: 8.7"
The month with the highest snowfall is February (9.57").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Plymouth, NY
- Average snowfall days in December: 17.2 days
The month with the highest number of snowfall days is January (19.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Plymouth, 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: 2h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 2h and 30min).
Average sunshine days in December
Plymouth, NY
- Average sunshine days in December: 7.5 days
The month with the most sunshine days is September (13.8 days).
The month with the least sunshine days is February (4.6 days).
Average UV index in December
Plymouth, NY
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Plymouth, 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 37).
Average visibility in December
Plymouth, NY
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).
Plymouth, New York, USA
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