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 sea temperature 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 onset of December introduces a moderate change in Tonawanda's weather, with average high-temperatures falling from November's frosty 45.5°F (7.5°C) to an icy 35.6°F (2°C). December nights in Tonawanda cool to an average low-temperature of 27.7°F (-2.4°C), a marginal decrease from its daytime equivalent.Humidity
In December, the average relative humidity is 83%.Rainfall
In Tonawanda, during December, the rain falls for 10.5 days and regularly aggregates up to 2.2" (56mm) of precipitation. Throughout the year, there are 169.2 rainfall days, and 28.15" (715mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Tonawanda, during December, snow falls for 15.5 days and regularly aggregates up to 5.24" (133mm) of snow. Throughout the year, there are 77.2 snowfall days, and 30.94" (786mm) of snow is accumulated.Ocean temperature
In Tonawanda, New York, the average seawater temperature in December is 41.2°F (5.1°C).Note: Taking a dip in 41.2°F (5.1°C) can be perilous. Submersion in temperatures under 50°F (10°C) triggers severe cold shock accompanied by hyperventilation.
Daylight
The month with the shortest days in Tonawanda is December, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:27 am and sunset at 4:41 pm. On the last day of December, in Tonawanda, New York, sunrise is at 7:46 am and sunset at 4:50 pm EST.
Sunshine
In Tonawanda, the average sunshine in December is 2.7h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum UV index of 1 in December translates into the following recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Around midday, solar radiation is most harmful; hence, exposure should be limited. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Tonawanda in December?
What is the average humidity in December in Tonawanda?
How much does it rain in Tonawanda in December?
How much does it snow in Tonawanda in December?
What is the water temperature in December in Tonawanda?
What is the month with the shortest days in Tonawanda?
How many hours of daylight does Tonawanda have in December?
When is the sunrise / sunset in December in Tonawanda?
How many hours of sunshine does Tonawanda have in December?
What are the months with the lowest UV index in Tonawanda?
What is the UV index reading in December in Tonawanda?
Average temperature in December
Tonawanda, NY
- Average high temperature in December: 35.6°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in December: 27.7°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).
Average pressure in December
Tonawanda, NY
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Tonawanda, NY
- Average wind speed in December: 10.1mph
The windiest month (with the highest average wind speed) is January (11mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity in December
Tonawanda, NY
- Average humidity in December: 83%
The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are July, August and September (74%).
Average rainfall in December
Tonawanda, NY
- Average rainfall in December: 2.2"
The wettest month (with the highest rainfall) is May (2.87").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in December
Tonawanda, NY
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (7.6 days).
Average snowfall in December
Tonawanda, NY
- Average snowfall in December: 5.24"
The month with the highest snowfall is February (7.64").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Tonawanda, NY
- Average snowfall days in December: 15.5 days
The month with the highest number of snowfall days is January (19 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in December
Tonawanda, NY
- Average sea temperature in December: 41.3°F
The best month for swimming (with the highest average sea temperature) is August (72.9°F).
The coldest month (with the lowest average sea temperature) is March (35.7°F).
Average daylight in December /
Average sunshine in December
Tonawanda, 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: 2h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days in December
Tonawanda, NY
- Average sunshine days in December: 8.2 days
The month with the most sunshine days is September (12.5 days).
The month with the least sunshine days is January (6.3 days).
Average UV index in December
Tonawanda, 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, February and December (UV index 1).
Average cloud cover in December
Tonawanda, NY
- Average cloud cover in December: 72
The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Tonawanda, NY
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Tonawanda, New York, USA
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