December weather forecastHammond, NY
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Hammond, New York, with temperature in the range of an average low of 21.2°F (-6°C) and an average high of 31.1°F (-0.5°C).Temperature
Hammond's weather changes with the onset of December, slightly falling from a chilly 42.8°F (6°C) in November to a freezing cold 31.1°F (-0.5°C). Throughout December, Hammond registers a consistent average low-temperature of 21.2°F (-6°C).Humidity
In Hammond, New York, the average relative humidity in December is 86%.Rainfall
In Hammond, during December, the rain falls for 10.1 days and regularly aggregates up to 2.91" (74mm) of precipitation. In Hammond, during the entire year, the rain falls for 165 days and collects up to 32.24" (819mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Hammond, in December, during 16.9 snowfall days, 7.99" (203mm) of snow is typically accumulated. In Hammond, during the entire year, snow falls for 84.1 days and aggregates up to 38.86" (987mm) of snow.Daylight
With an average of 8h and 54min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:19 am and sunset at 4:24 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 4:33 pm EST.
Sunshine
The average sunshine in December is 2.9h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 1 suggests this advice:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Hammond, NY
- Average high temperature in December: 31.1°F
The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is January (24.4°F).
- Average low temperature in December: 21.2°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in December
Hammond, NY
- Average pressure in December: 30.05"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Hammond, NY
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is February (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in December
Hammond, NY
- Average humidity in December: 86%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is April (77%).
Average rainfall in December
Hammond, NY
- Average rainfall in December: 2.91"
The wettest month (with the highest rainfall) is October (3.31").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in December
Hammond, NY
- Average rainfall days in December: 10.1 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (7.7 days).
Average snowfall in December
Hammond, NY
- Average snowfall in December: 7.99"
The month with the highest snowfall is January (9.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Hammond, NY
- Average snowfall days in December: 16.9 days
The month with the highest number of snowfall days is January (20 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Hammond, NY
- Average daylight in December: 8h and 54min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 2h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 2h and 42min).
Average sunshine days in December
Hammond, NY
- Average sunshine days in December: 8.7 days
The month with the most sunshine days is September (14.8 days).
The month with the least sunshine days is February (7 days).
Average UV index in December
Hammond, NY
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Hammond, NY
- Average cloud cover in December: 70
The months with the most cloud cover are January and February (Cloud cover 72).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility in December
Hammond, NY
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
