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
December implies a gentle temperature shift, with average high-temperatures reducing from November's cold 42.6°F (5.9°C) to a still icy 32.2°F (0.1°C). Hartwick reports an average nighttime low-temperature of 22.6°F (-5.2°C) in December.Humidity
In Hartwick, the average relative humidity in December is 87%.Rainfall
In Hartwick, in December, it is raining for 10.2 days, with typically 1.81" (46mm) of accumulated precipitation. In Hartwick, during the entire year, the rain falls for 153.2 days and collects up to 25.28" (642mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Hartwick. The month with the most snowfall in Hartwick is December, when snow falls for 16.5 days and typically aggregates up to 6.65" (169mm) of snow.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year in Hartwick.On the first day of December, sunrise is at 7:11 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 4:36 pm EST.
Sunshine
In December, the average sunshine in Hartwick is 3h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Hartwick. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 1 in December translates into these instructions:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Experience reduced UV exposure by about half when donning a wide-brim hat. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Hartwick?
What is the average humidity in December in Hartwick?
How much does it rain in Hartwick in December?
What is the snowiest month in Hartwick?
How much does it snow in Hartwick in December?
What is the month with the shortest days in Hartwick?
How many hours of daylight does Hartwick have in December?
What time are sunrise and sunset in December in Hartwick?
How long on average sun shines in December in Hartwick?
When is the lowest UV index in Hartwick?
How high is the UV index in December in Hartwick?
Average temperature in December
Hartwick, NY
- Average high temperature in December: 32.2°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (26.4°F).
- Average low temperature in December: 22.6°F
The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (14.7°F).
Average pressure in December
Hartwick, NY
- Average pressure in December: 30.06"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
Hartwick, NY
- Average wind speed in December: 9.4mph
The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in December
Hartwick, 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
Hartwick, NY
- Average rainfall in December: 1.81"
The wettest month (with the highest rainfall) is June (2.64").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in December
Hartwick, NY
- Average rainfall days in December: 10.2 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in December
Hartwick, NY
- Average snowfall in December: 6.65"
The month with the highest snowfall is December (6.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Hartwick, NY
- Average snowfall days in December: 16.5 days
The month with the highest number of snowfall days is January (19.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Hartwick, 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: 3h and 0min
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 42min).
Average sunshine days in December
Hartwick, NY
- Average sunshine days in December: 8.4 days
The month with the most sunshine days is September (15.3 days).
The month with the least sunshine days is February (6.3 days).
Average UV index in December
Hartwick, 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
Hartwick, NY
- Average cloud cover in December: 70
The month with the most cloud cover is February (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in December
Hartwick, 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).
Hartwick, New York, USA
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