Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
With the onset of December, York Haven experiences a modest temperature adjustment, with the average high-temperature receding from a cool 50.9°F (10.5°C) in November to an icy 41.9°F (5.5°C). In December, York Haven records an average nighttime temperature of 29.7°F (-1.3°C).Humidity
In York Haven, the average relative humidity in December is 79%.Rainfall
In York Haven, in December, during 9.4 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. Throughout the year, there are 134.1 rainfall days, and 17.83" (453mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. In December, it is snowing for 3.5 days. Throughout December, 0.98" (25mm) of snow is accumulated. Throughout the year, there are 20.6 snowfall days, and 7.64" (194mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:10 am and sunset at 4:41 pm. On the last day of December, sunrise is at 7:28 am and sunset at 4:51 pm EST.
Sunshine
The average sunshine in December is 4.8h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 2 during December leads to these advisories:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December in York Haven?
What time are sunrise and sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index intensity in December in York Haven?
Average temperature in December
York Haven, PA
- Average high temperature in December: 41.9°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in December: 29.7°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in December
York Haven, PA
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
York Haven, PA
- Average wind speed in December: 8.1mph
The windiest month (with the highest average wind speed) is March (8.7mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
York Haven, PA
- Average humidity in December: 79%
The months with the highest relative humidity are February, May and October (80%).
The months with the lowest relative humidity are March and April (76%).
Average rainfall in December
York Haven, PA
- Average rainfall in December: 1.26"
The wettest months (with the highest rainfall) are July and August (2.01").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in December
York Haven, PA
- Average rainfall days in December: 9.4 days
The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is January (6 days).
Average snowfall in December
York Haven, PA
- Average snowfall in December: 0.98"
The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
York Haven, PA
- Average snowfall days in December: 3.5 days
The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
York Haven, 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 24min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
York Haven, PA
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is May (12.8 days).
Average UV index in December
York Haven, PA
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
York Haven, PA
- Average cloud cover in December: 48
The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in December
York Haven, PA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
York Haven, Pennsylvania, USA
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