December weather forecastHaysville, PA
December
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 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: 9h and 18min
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 12min
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: 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: 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: 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: 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).
