December weather forecast
Haysville, PA

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Weather in December

The first month of the winter, December, is still a cold month in Haysville, Pennsylvania, with an average temperature varying between 39°F (3.9°C) and 28°F (-2.2°C).

Temperature

December weather is marked by a drop in the average high-temperature, falling from a frosty 48.7°F (9.3°C) in November to a cold 39°F (3.9°C). An average temperature of 28°F (-2.2°C) marks the nights in December.

Humidity

In Haysville, the average relative humidity in December is 84%.

Rainfall

In December, the rain falls for 10.1 days. Throughout December, 1.57" (40mm) of precipitation is accumulated. In Haysville, during the entire year, the rain falls for 154.8 days and collects up to 21.22" (539mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Haysville, Pennsylvania, in December, snow falls for 10.5 days, with typically accumulated 1.69" (43mm) of snow. In Haysville, during the entire year, snow falls for 49.9 days and aggregates up to 10.12" (257mm) of snow.

Daylight

The month with the shortest days in Haysville is December, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 7:25 am and sunset at 4:54 pm. On the last day of December, sunrise is at 7:43 am and sunset at 5:03 pm EST.

Sunshine

In December, the average sunshine is 3.2h.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In December, a daily maximum UV index of 1 leads to the following instructions:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it cold during December?

The average high-temperature and low-temperature during December are 39°F (3.9°C) and 28°F (-2.2°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in August is appraised at 87.8°F (31°C).

What is the average humidity in December?

In Haysville, the average relative humidity in December is 84%.

How much does it rain in December?

In Haysville, in December, during 10.1 rainfall days, 1.57" (40mm) of precipitation is typically accumulated.

How much does it snow in December?

In December, it is snowing for 10.5 days. Throughout December, 1.69" (43mm) of snow is accumulated.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 18min of daylight.

What is the average length of the day in December?

In December, the average day length is 9h and 20min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:25 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 5:03 pm EST.

How many hours of sunshine does Haysville have in December?

The average sunshine duration in December is 3.2h.

What is the month with the lowest UV index?

December is the month with the lowest UV index, with an average maximum UV index of 1.

How high is the UV index in December?

In December, the average daily maximum UV index is 1. A UV Index reading of 2, and below, represents a low health threat 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
Haysville, PA

Average temperature in December - Haysville, PA
  • Average high temperature in December: 39°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (32.9°F).

  • Average low temperature in December: 28°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).

Average pressure in December
Haysville, PA

Average pressure in December - Haysville, PA
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in December
Haysville, PA

Average wind speed in December - Haysville, PA
  • Average wind speed in December: 7.4mph

The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

Average humidity in December
Haysville, PA

Average humidity in December - Haysville, PA
  • Average humidity in December: 84%

The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are July and August (75%).

Average rainfall in December
Haysville, PA

Average rainfall in December - Haysville, PA
  • Average rainfall in December: 1.57"

The wettest month (with the highest rainfall) is July (2.36").
The driest month (with the least rainfall) is January (1.22").

Average rainfall days in December
Haysville, PA

Average rainfall days in December - Haysville, PA
  • Average rainfall days in December: 10.1 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (8.1 days).

Average snowfall in December
Haysville, PA

Average snowfall in December - Haysville, PA
  • Average snowfall in December: 1.69"

The month with the highest snowfall is February (2.76").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Haysville, PA

Average snowfall days in December - Haysville, PA
  • Average snowfall days in December: 10.5 days

The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Haysville, PA

Average daylight in December / Average sunshine in December - Haysville, PA
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 3h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).

Average sunshine days in December
Haysville, PA

Average sunshine days in December - Haysville, PA
  • Average sunshine days in December: 12.9 days

The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is February (10.7 days).

Average UV index in December
Haysville, PA

Average UV index in December - Haysville, PA
  • Average UV index in December: 1

The months with the highest UV index are May, June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in December
Haysville, PA

Average cloud cover in December - Haysville, PA
  • Average cloud cover in December: 66

The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in December
Haysville, PA

Average visibility in December - Haysville, PA
  • Average visibility in December: 5mi

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

Haysville, Pennsylvania, USA

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