December weather forecastHarpursville, NY
December
Weather in December
December, the first month of the winter in Harpursville, is still a cold month, with an average temperature fluctuating between 32.9°F (0.5°C) and 23.2°F (-4.9°C).Temperature
As December arrives, Harpursville's weather displays a decrease in high-temperatures, transitioning from November's frosty 43.2°F (6.2°C) to a cold 32.9°F (0.5°C). Harpursville experiences an average low-temperature reading of 23.2°F (-4.9°C) throughout December.Humidity
In December, the average relative humidity in Harpursville is 87%.Rainfall
In December, the rain falls for 9.9 days. Throughout December, 1.38" (35mm) of precipitation is accumulated. In Harpursville, during the entire year, the rain falls for 142.2 days and collects up to 18.58" (472mm) of precipitation.Snowfall
Months with snowfall in Harpursville are January through May, October through December. In December, in Harpursville, it is snowing for 15.5 days. Throughout December, 4.25" (108mm) of snow is accumulated. In Harpursville, during the entire year, snow falls for 82.5 days and aggregates up to 23.31" (592mm) 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 7:12 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 4:40 pm EST.
Sunshine
In December, the average sunshine in Harpursville is 2.7h.UV index
The months with the lowest UV index in Harpursville, New York, are February, November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: The UV index of 1 during December leads to these advisories:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. 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
Average temperature in December
Harpursville, NY
- Average high temperature in December: 32.9°F
The warmest month (with the highest average high temperature) is July (78.4°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 (57.2°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).
Average pressure in December
Harpursville, 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
Harpursville, NY
- Average wind speed in December: 9.1mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in December
Harpursville, NY
- Average humidity in December: 87%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is July (79%).
Average rainfall in December
Harpursville, NY
- Average rainfall in December: 1.38"
The wettest month (with the highest rainfall) is August (2.05").
The driest month (with the least rainfall) is September (1.1").
Average rainfall days in December
Harpursville, NY
- Average rainfall days in December: 9.9 days
The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in December
Harpursville, NY
- Average snowfall in December: 4.25"
The month with the highest snowfall is January (4.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Harpursville, NY
- Average snowfall days in December: 15.5 days
The month with the highest number of snowfall days is January (18.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Harpursville, NY
- Average daylight in December: 9h and 12min
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 42min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 2h and 30min).
Average sunshine days in December
Harpursville, NY
- Average sunshine days in December: 8.7 days
The month with the most sunshine days is September (16.3 days).
The month with the least sunshine days is February (7.1 days).
Average UV index in December
Harpursville, 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 February, November and December (UV index 1).
Average cloud cover in December
Harpursville, NY
- Average cloud cover in December: 73
The month with the most cloud cover is February (Cloud cover 75).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in December
Harpursville, NY
- Average visibility in December: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).
