December weather forecast
Hornell, NY

Weather in December

The first month of the winter, December, is also a wintry month in Hornell, New York, with temperature in the range of an average high of 33.8°F (1°C) and an average low of 24.1°F (-4.4°C).

Temperature

In Hornell, the average high-temperature in December decreases from a chilly 43.9°F (6.6°C) in November to a cold 33.8°F (1°C). In Hornell, the average low-temperature is 24.1°F (-4.4°C).

Humidity

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

Rainfall

In December, in Hornell, the rain falls for 8.9 days. Throughout December, 1.65" (42mm) of precipitation is accumulated. Throughout the year, in Hornell, there are 153.6 rainfall days, and 22.48" (571mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Hornell are January through May, October through December. In Hornell, New York, in December, snow falls for 13.7 days, with typically accumulated 5.12" (130mm) of snow. In Hornell, during the entire year, snow falls for 71.8 days and aggregates up to 25.47" (647mm) of snow.

Daylight

December has the shortest days of the year in Hornell, with an average of 9h and 8min of daylight.
On the first day of December in Hornell, sunrise is at 7:19 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 4:47 pm EST.

Sunshine

January, February and December, with an average of 2.8h of sunshine, are months with the least sunshine in Hornell.

UV index

January, February and December, with an average maximum UV index of 1, are months with the lowest UV index in Hornell, New York. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 1 in December transform into the following instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in December in Hornell?

The average high-temperature, in December, in Hornell, New York, is 33.8°F (1°C), while the average low-temperature is 24.1°F (-4.4°C).

What is the average humidity in December in Hornell?

The average relative humidity in December in Hornell is 86%.

How much does it rain in Hornell in December?

In Hornell, in December, it is raining for 8.9 days, with typically 1.65" (42mm) of accumulated precipitation.

How much does it snow in Hornell in December?

In December, in Hornell, New York, it is snowing for 13.7 days. Throughout December, 5.12" (130mm) of snow is accumulated.

What is the month with the shortest days in Hornell?

With an average of 9h and 8min of daylight, December has the shortest days of the year in Hornell.

How many hours of daylight does Hornell have in December?

The average day length in December is 9h and 8min.

When are sunrise and sunset in December in Hornell?

In December, on the first day of the month, sunrise is at 7:19 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 4:47 pm EST.

What is the month with the least sunshine in Hornell?

January, February and December, with an average of 2.8h of sunshine, are months with the least sunshine.

How many hours of sunshine does Hornell have in December?

In Hornell, the average sunshine duration in December is 2.8h.

What are the months with the lowest UV index in Hornell?

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

What is the UV index reading in December in Hornell?

The average daily maximum UV index in December in Hornell, New York, is 1. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to Sun's UV rays.
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
Hornell, NY

Average temperature in December - Hornell, NY
  • Average high temperature in December: 33.8°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 (27.9°F).

  • Average low temperature in December: 24.1°F

The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (16°F).

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Average pressure in December
Hornell, NY

Average pressure in December - Hornell, NY
  • Average pressure in December: 30.07"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
Hornell, NY

Average wind speed in December - Hornell, NY
  • Average wind speed in December: 9.5mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

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Average humidity in December
Hornell, NY

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

The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is May (78%).

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Average rainfall in December
Hornell, NY

Average rainfall in December - Hornell, NY
  • Average rainfall in December: 1.65"

The wettest month (with the highest rainfall) is October (2.52").
The driest month (with the least rainfall) is January (1.26").

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Average rainfall days in December
Hornell, NY

Average rainfall days in December - Hornell, NY
  • Average rainfall days in December: 8.9 days

The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is February (6.3 days).

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Average snowfall in December
Hornell, NY

Average snowfall in December - Hornell, NY
  • Average snowfall in December: 5.12"

The month with the highest snowfall is February (6.54").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Hornell, NY

Average snowfall days in December - Hornell, NY
  • Average snowfall days in December: 13.7 days

The month with the highest number of snowfall days is January (16.5 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
Hornell, NY

Average daylight in December / Average sunshine in December - Hornell, NY
  • Average daylight in December: 9h and 8min

The month with the longest days is June (Average daylight: 15h and 14min).
The month with the shortest days is December (Average daylight: 9h and 8min).

  • Average sunshine in December: 2h and 48min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The months with the least sunshine are January, February and December (Average sunshine: 2h and 48min).

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Average sunshine days in December
Hornell, NY

Average sunshine days in December - Hornell, NY
  • Average sunshine days in December: 10.5 days

The month with the most sunshine days is September (14.9 days).
The month with the least sunshine days is February (9 days).

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Average UV index in December
Hornell, NY

Average UV index in December - Hornell, 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
Hornell, NY

Average cloud cover in December - Hornell, NY
  • Average cloud cover in December: 72

The month with the most cloud cover is January (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 39).

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Average visibility in December
Hornell, NY

Average visibility in December - Hornell, NY
  • Average visibility in December: 5mi

The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).

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