December weather forecastNorth Merrick, NY
December
Weather in December
The first month of the winter, December, is still a chilly month in North Merrick, New York, with temperature in the range of an average low of 36.3°F (2.4°C) and an average high of 43.7°F (6.5°C).Temperature
North Merrick observes a small decrease in the average high-temperature with the arrival of December, falling from November's fresh 51.4°F (10.8°C) to a frosty 43.7°F (6.5°C). North Merrick's nighttime temperatures in December see a subtle dip to an average of 36.3°F (2.4°C).Humidity
The average relative humidity in December is 74%.Rainfall
In North Merrick, in December, it is raining for 10.9 days, with typically 2.6" (66mm) of accumulated precipitation. In North Merrick, during the entire year, the rain falls for 146.9 days and collects up to 26.38" (670mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In North Merrick, during December, snow falls for 2.3 days and regularly aggregates up to 0.79" (20mm) of snow. In North Merrick, New York, during the entire year, snow falls for 15.3 days and aggregates up to 4.65" (118mm) of snow.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year in North Merrick.On the first day of the month, sunrise is at 6:59 am and sunset at 4:27 pm. On the last day of December, in North Merrick, sunrise is at 7:18 am and sunset at 4:37 pm EST.
Sunshine
In North Merrick, the average sunshine in December is 4.9h.UV index
January through March and December, with an average maximum UV index of 2, are months with the lowest UV index in North Merrick, New York. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 2 suggests this advice:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Experience reduced UV exposure by about half when donning a wide-brim hat. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
North Merrick, NY
- Average high temperature in December: 43.7°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (37.6°F).
- Average low temperature in December: 36.3°F
The months with the highest average low temperature are July and August (71.4°F).
The coldest month (with the lowest average low temperature) is January (29.3°F).
Average pressure in December
North Merrick, 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
North Merrick, NY
- Average wind speed in December: 12.5mph
The windiest month (with the highest average wind speed) is January (13mph).
The calmest month (with the lowest average wind speed) is July (8.5mph).
Average humidity in December
North Merrick, NY
- Average humidity in December: 74%
The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is November (71%).
Average rainfall in December
North Merrick, NY
- Average rainfall in December: 2.6"
The wettest month (with the highest rainfall) is July (3.11").
The driest month (with the least rainfall) is January (1.42").
Average rainfall days in December
North Merrick, NY
- Average rainfall days in December: 10.9 days
The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is January (7.5 days).
Average snowfall in December
North Merrick, NY
- Average snowfall in December: 0.79"
The month with the highest snowfall is March (1.65").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
North Merrick, NY
- Average snowfall days in December: 2.3 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 and September (0 days).
Average daylight in December /
Average sunshine in December
North Merrick, NY
- Average daylight in December: 9h and 18min
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: 4h and 54min
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
North Merrick, NY
- Average sunshine days in December: 16.9 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is July (12.3 days).
Average UV index in December
North Merrick, 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 and December (UV index 2).
Average cloud cover in December
North Merrick, NY
- Average cloud cover in December: 48
The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in December
North Merrick, 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).
