December weather forecast
Dayton, NY

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Weather in December

The first month of the winter, December, is also a wintry month in Dayton, New York, with an average temperature fluctuating between 26.1°F (-3.3°C) and 35.1°F (1.7°C).

Temperature

December comes with a drop in the average high-temperature, falling from November's frosty 44.4°F (6.9°C) to an icy 35.1°F (1.7°C). In Dayton, the month of December records an average minimum temperature of 26.1°F (-3.3°C), a slight dip from the daily highs.

Humidity

In December, the average relative humidity in Dayton, New York, is 86%.

Rainfall

In December, the rain falls for 8.8 days. Throughout December, 1.46" (37mm) of precipitation is accumulated. Throughout the year, there are 148.9 rainfall days, and 18.35" (466mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. The months with the most snowfall are January and December, with an average 3.54" (90mm) of accumulated snow.

Daylight

December has the shortest days of the year in Dayton, with an average of 9h and 6min of daylight.
On the first day of December in Dayton, sunrise is at 7:26 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 4:53 pm EST.

Sunshine

In December, the average sunshine in Dayton is 2.6h.

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 estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: During December, 1 as the daily maximum UV index converts into the following advice:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
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Frequently asked questions

How cold is it in Dayton in December?

In December, in Dayton, the average high-temperature is 35.1°F (1.7°C), and the average low-temperature is 26.1°F (-3.3°C).

What is the average humidity in December in Dayton?

In Dayton, the average relative humidity in December is 86%.

How much does it rain in Dayton in December?

In Dayton, New York, during December, the rain falls for 8.8 days and regularly aggregates up to 1.46" (37mm) of precipitation.

What is the snowiest month in Dayton?

The months with the most snowfall in Dayton, New York, are January and December, with an average 3.54" (90mm) of accumulated snow.

How much does it snow in Dayton in December?

In Dayton, in December, snow falls for 14.5 days, with typically accumulated 3.54" (90mm) of snow.

What is the month with the shortest days in Dayton?

December has the shortest days of the year in Dayton, New York, with an average of 9h and 6min of daylight.

How many hours of daylight does Dayton have in December?

In Dayton, the average day length in December is 9h and 8min.

When is the sunrise / sunset in December in Dayton?

On the first day of December in Dayton, sunrise is at 7:26 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 4:53 pm EST.

How many hours of sunshine does Dayton have in December?

The average sunshine duration in December in Dayton is 2.6h.

What is the month with the lowest UV index in Dayton?

January, February and December, with an average maximum UV index of 1, are months with the lowest UV index.

What is the UV index reading in December in Dayton?

In December, the average daily maximum UV index in Dayton is 1. A UV Index value of 2, and less, symbolizes a low health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Dayton, NY

Average temperature in December - Dayton, NY
  • Average high temperature in December: 35.1°F

The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (28.2°F).

  • Average low temperature in December: 26.1°F

The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).

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Average pressure in December
Dayton, NY

Average pressure in December - Dayton, 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).

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Average wind speed in December
Dayton, NY

Average wind speed in December - Dayton, NY
  • Average wind speed in December: 10.9mph

The windiest month (with the highest average wind speed) is January (11.6mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).

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Average humidity in December
Dayton, NY

Average humidity in December - Dayton, NY
  • Average humidity in December: 86%

The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April, May, August and September (80%).

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Average rainfall in December
Dayton, NY

Average rainfall in December - Dayton, NY
  • Average rainfall in December: 1.46"

The wettest month (with the highest rainfall) is July (1.93").
The driest month (with the least rainfall) is September (1.1").

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Average rainfall days in December
Dayton, NY

Average rainfall days in December - Dayton, NY
  • Average rainfall days in December: 8.8 days

The month with the highest number of rainy days is October (16.6 days).
The month with the least rainy days is February (6.8 days).

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Average snowfall in December
Dayton, NY

Average snowfall in December - Dayton, NY
  • Average snowfall in December: 3.54"

The months with the highest snowfall are January and December (3.54").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Dayton, NY

Average snowfall days in December - Dayton, NY
  • Average snowfall days in December: 14.5 days

The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Dayton, NY

Average daylight in December / Average sunshine in December - Dayton, NY
  • Average daylight in December: 9h and 1min

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 6min).

  • Average sunshine in December: 2h and 4min

The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).

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Average sunshine days in December
Dayton, NY

Average sunshine days in December - Dayton, NY
  • Average sunshine days in December: 8.5 days

The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is January (8.2 days).

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Average UV index in December
Dayton, NY

Average UV index in December - Dayton, 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 January, February and December (UV index 1).

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Average cloud cover in December
Dayton, NY

Average cloud cover in December - Dayton, NY
  • Average cloud cover in December: 75

The month with the most cloud cover is January (Cloud cover 78).
The month with the least cloud cover is August (Cloud cover 31).

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Average visibility in December
Dayton, NY

Average visibility in December - Dayton, 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).

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Dayton, New York, USA

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