December weather forecast and climate
Amherst, NY

December, the first month of the winter, in Amherst, is still a cold month, with average temperature ranging between min 27.7°F (-2.4°C) and max 35.6°F (2°C).

Temperature

In December, the average high-temperature drops, from a chilly 45.5°F (7.5°C) in November, to a cold 35.6°F (2°C). The average low-temperature, is 27.7°F (-2.4°C).

Humidity

The average relative humidity in Amherst is 83%.

Rainfall

In Amherst, in December, it is raining for 10.5 days, with typically 2.2" (56mm) of accumulated precipitation. In Amherst, during the entire year, the rain falls for 169.2 days and collects up to 28.15" (715mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Amherst, snow falls for 15.5 days, with typically accumulated 5.24" (133mm) of snow. Throughout the year, in Amherst, New York, there are 77.2 snowfall days, and 30.94" (786mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9.1h of daylight.

Sunshine

The average sunshine in Amherst is 2.7h.

UV index

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 minimal health vulnerability from the exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 1 transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in December in Amherst?

In December, in Amherst, the average high-temperature is 35.6°F (2°C), and the average low-temperature is 27.7°F (-2.4°C).

What is the average humidity in December in Amherst?

The average relative humidity in December in Amherst, New York, is 83%.

How much does it rain in Amherst in December?

In Amherst, in December, it is raining for 10.5 days, with typically 2.2" (56mm) of accumulated precipitation.

How many days does it snow in December in Amherst?

In December, in Amherst, it is snowing for 15.5 days. Throughout December, 5.24" (133mm) of snow is accumulated.

What is the month with the shortest days in Amherst?

With an average of 9.1h of daylight, December has the shortest days of the year.

What is the average length of the day in December in Amherst?

The average length of the day in December is 9.1h.

How many hours of sunshine does Amherst have in December?

In December, the average sunshine is 2.7h.

When is the lowest UV index in Amherst?

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

What is the UV index reading in December in Amherst?

In Amherst, New York, the average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from the exposure to the Sun's UV rays.
Average temperature in December - Amherst, 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 - Amherst, NY
  • Average pressure in December: 30.06"

The month with the highest atmospheric pressure is November (30.09").
The month with the lowest atmospheric pressure is June (29.92").

Average wind speed in December - Amherst, 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 - Amherst, NY
  • Average humidity in December: 83%

Months with the highest relative humidity are January and February (85%).
Months with the lowest relative humidity are July, August and September (74%).

Average rainfall in December - Amherst, 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 - Amherst, 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 - Amherst, NY
  • Average snowfall in December: 5.24"

The month with the highest snowfall is February (7.64").
Months with the least snowfall are June, July, August and September (0").

Average snowfall days in December - Amherst, NY
  • Average snowfall days in December: 15.5 days

The month with the highest number of snowfall days is January (19 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December / Average sunshine in December - Amherst, NY
  • Average daylight in December: 9.1h

The month with the longest days is June (Average daylight: 15.3h).
The month with the shortest days is December (Average daylight: 9.1h).

  • Average sunshine in December: 2.7h

The month with the most sunshine is July (Average sunshine: 10.3h).
The month with the least sunshine is January (Average sunshine: 2.3h).

Average sunshine days in December - Amherst, 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 - Amherst, NY
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 6).
Months with the lowest UV index are January, February and December (UV index 1).

Average cloud cover in December - Amherst, 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 - Amherst, NY
  • Average visibility in December: 5mi

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