December weather forecast
Lockport, NY

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Weather in December

December brings back cold winter conditions to Lockport, New York. The city again sees snowfall, with records of 4.29" (109mm) for the month. The daylight hours reduce drastically compared to November, making the days seem shorter. The humidity level rises, further intensifying the sense of cold. The weather in December is distinctly colder than in previous months, setting the tone for a chilly January.

Temperature

December indicates a shift in the average high-temperature, from November's frosty 45.5°F (7.5°C) to an icy 36°F (2.2°C). Lockport observes a slightly reduced average nighttime temperature of 28.6°F (-1.9°C) during December.

Humidity

In December, the average relative humidity is 82%.

Rainfall

In Lockport, New York, in December, during 10.8 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. Throughout the year, there are 174.3 rainfall days, and 28.03" (712mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In December, it is snowing for 15.1 days. Throughout December, 4.29" (109mm) of snow is accumulated. In Lockport, during the entire year, snow falls for 73.2 days and aggregates up to 25.04" (636mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 6min of daylight.
On the first day of December, sunrise is at 7:27 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 4:49 pm EST.

Sunshine

In December, the average sunshine is 3h.

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 minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: A daily high UV index of 1 in December leads to these guidelines:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. When the Sun is at its strongest around midday, find shade and limit exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Updated: Aug 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

An average high-temperature, in December, in Lockport, is 36°F (2.2°C) and the average low-temperature is 28.6°F (-1.9°C).

What is the average humidity in December?

The average relative humidity in December is 82%.

How much does it rain in December?

In December, the rain falls for 10.8 days. Throughout December, 2.2" (56mm) of precipitation is accumulated.

How much does it snow in December?

In Lockport, in December, during 15.1 snowfall days, 4.29" (109mm) of snow is typically accumulated.

What is the month with the shortest days?

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

What is the average length of the day in December?

The average day length in December is 9h and 3min.

What time are sunrise and sunset in December?

On the first day of December in Lockport, sunrise is at 7:27 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 4:49 pm EST.

How long on average sun shines in December?

The average sunshine duration in December is 3h.

What is the month with the lowest UV index?

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

How high is the UV index in December?

In December, the average daily maximum UV index is 1. A UV Index estimate of 2, and below, represents a low health risk from 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
Lockport, NY

Average temperature in December - Lockport, NY
  • Average high temperature in December: 36°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 (29.7°F).

  • Average low temperature in December: 28.6°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).

Average pressure in December
Lockport, NY

Average pressure in December - Lockport, NY
  • Average pressure in December: 30.06"Hg

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in December
Lockport, NY

Average wind speed in December - Lockport, NY
  • Average wind speed in December: 11.2mph

The windiest month (with the highest average wind speed) is January (12.1mph).
The calmest month (with the lowest average wind speed) is July (7mph).

Average humidity in December
Lockport, NY

Average humidity in December - Lockport, NY
  • Average humidity in December: 82%

The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are August and September (75%).

Average rainfall in December
Lockport, NY

Average rainfall in December - Lockport, NY
  • Average rainfall in December: 2.2"

The wettest month (with the highest rainfall) is May (2.91").
The driest month (with the least rainfall) is September (1.89").

Average rainfall days in December
Lockport, NY

Average rainfall days in December - Lockport, NY
  • Average rainfall days in December: 10.8 days

The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is February (9.2 days).

Average snowfall in December
Lockport, NY

Average snowfall in December - Lockport, NY
  • Average snowfall in December: 4.29"

The month with the highest snowfall is February (6.65").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Lockport, NY

Average snowfall days in December - Lockport, NY
  • Average snowfall days in December: 15.1 days

The month with the highest number of snowfall days is January (17.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Lockport, 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 42min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).

Average sunshine days in December
Lockport, NY

Average sunshine days in December - Lockport, NY
  • Average sunshine days in December: 7.5 days

The month with the most sunshine days is September (12.5 days).
The month with the least sunshine days is February (6 days).

Average UV index in December
Lockport, NY

Average UV index in December - Lockport, 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
Lockport, NY

Average cloud cover in December - Lockport, NY
  • Average cloud cover in December: 69

The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in December
Lockport, NY

Average visibility in December - Lockport, NY
  • Average visibility in December: 6mi

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

Lockport, New York, USA

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