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
December
Weather in December
Temperature
In December, the average high-temperature goes from a chilly 43.7°F (6.5°C) in November to an icy 34.3°F (1.3°C). In December, the nighttime temperature lowers to an average of 25.2°F (-3.8°C).Humidity
In Randolph, the average relative humidity in December is 88%.Rainfall
In Randolph, during December, the rain falls for 9.7 days and regularly aggregates up to 1.5" (38mm) of precipitation. In Randolph, during the entire year, the rain falls for 147.2 days and collects up to 17.28" (439mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. December is the month with the most snowfall. Snow falls for 17.1 days and accumulates 5.47" (139mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 7:25 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 4:54 pm EST.
Sunshine
In December, the average sunshine in Randolph is 2.4h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the average person.Note: In December, a regular UV index of 1 translates into these guidelines:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
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 in Randolph?
How much does it rain in December?
What is the snowiest month?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Randolph have in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Randolph have in December?
What are the months with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Randolph, NY
- Average high temperature in December: 34.3°F
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is January (28°F).
- Average low temperature in December: 25.2°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).
Average pressure in December
Randolph, NY
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Randolph, NY
- Average wind speed in December: 9.4mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in December
Randolph, NY
- Average humidity in December: 88%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (80%).
Average rainfall in December
Randolph, NY
- Average rainfall in December: 1.5"
The wettest month (with the highest rainfall) is April (1.85").
The driest month (with the least rainfall) is September (1.02").
Average rainfall days in December
Randolph, NY
- Average rainfall days in December: 9.7 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is January (7.1 days).
Average snowfall in December
Randolph, NY
- Average snowfall in December: 5.47"
The month with the highest snowfall is December (5.47").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Randolph, NY
- Average snowfall days in December: 17.1 days
The month with the highest number of snowfall days is January (19.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Randolph, NY
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 2h and 2min
The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days in December
Randolph, NY
- Average sunshine days in December: 7.7 days
The month with the most sunshine days is September (14.2 days).
The month with the least sunshine days is January (6.8 days).
Average UV index in December
Randolph, 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
Randolph, NY
- Average cloud cover in December: 77
The month with the most cloud cover is January (Cloud cover 79).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in December
Randolph, 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).