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 average high-temperature decreases in December, shifting from a fresh 51.8°F (11°C) in November to an icy 42.4°F (5.8°C). December sees a slight dip to an average low temperature of 34.5°F (1.4°C) from the daytime highs.Humidity
February, May and December, with an average relative humidity of 75%, are the most humid months in Richmond Hill.Rainfall
In Richmond Hill, during December, the rain falls for 11.4 days and regularly aggregates up to 3.5" (89mm) of precipitation. Throughout the year, in Richmond Hill, there are 155.6 rainfall days, and 34.72" (882mm) of precipitation is accumulated.Snowfall
Months with snowfall in Richmond Hill are January through April, November and December. In Richmond Hill, during December, snow falls for 3 days and regularly aggregates up to 1.18" (30mm) of snow. Throughout the year, there are 15 snowfall days, and 5.39" (137mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of December in Richmond Hill, sunrise is at 7:00 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 4:38 pm EST.
Sunshine
The average sunshine in December is 5h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Richmond Hill. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: A typical high UV index of 2 in December suggests the following recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The Sun's radiation is especially intense around midday; try to stay in shade during this period. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Frequently asked questions
How cold does it get in Richmond Hill in December?
What is the most humid month in Richmond Hill?
What is the average humidity in December in Richmond Hill?
How many days does it rain in December in Richmond Hill?
How many days does it snow in December in Richmond Hill?
What is the month with the shortest days in Richmond Hill?
How many hours of daylight does Richmond Hill have in December?
When is the sunrise / sunset in December in Richmond Hill?
How many hours of sunshine does Richmond Hill have in December?
What are the months with the lowest UV index in Richmond Hill?
What is the UV index reading in December in Richmond Hill?
Average temperature in December
Richmond Hill, NY
- Average high temperature in December: 42.4°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in December: 34.5°F
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).
Average pressure in December
Richmond Hill, 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
Richmond Hill, NY
- Average wind speed in December: 10.7mph
The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).
Average humidity in December
Richmond Hill, NY
- Average humidity in December: 75%
The months with the highest relative humidity are February, May and December (75%).
The months with the lowest relative humidity are August and November (71%).
Average rainfall in December
Richmond Hill, NY
- Average rainfall in December: 3.5"
The wettest month (with the highest rainfall) is July (4.02").
The driest month (with the least rainfall) is January (2.05").
Average rainfall days in December
Richmond Hill, NY
- Average rainfall days in December: 11.4 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in December
Richmond Hill, NY
- Average snowfall in December: 1.18"
The month with the highest snowfall is March (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Richmond Hill, NY
- Average snowfall days in December: 3 days
The month with the highest number of snowfall days is January (4.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Richmond Hill, NY
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Richmond Hill, NY
- Average sunshine days in December: 17.3 days
The months with the most sunshine days are January and November (19.7 days).
The month with the least sunshine days is July (11 days).
Average UV index in December
Richmond Hill, NY
- Average UV index in December: 2
The months with the highest UV index are June, July 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
Richmond Hill, NY
- Average cloud cover in December: 47
The month with the most cloud cover is December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in December
Richmond Hill, NY
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Richmond Hill, New York, USA
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