December weather forecastYostville, PA
December
Weather in December
The first month of the winter, December, is also an icy month in Yostville, Pennsylvania, with temperature in the range of an average high of 35.6°F (2°C) and an average low of 25.2°F (-3.8°C).Temperature
December weather is marked by a drop in the average high-temperature, falling from a chilly 45.1°F (7.3°C) in November to an icy 35.6°F (2°C). In Yostville, the average temperature during the nights of December drops to a subzero cold 25.2°F (-3.8°C).Humidity
The months with the highest humidity in Yostville are February and December, with an average relative humidity of 85%.Rainfall
In Yostville, Pennsylvania, during December, the rain falls for 8.1 days and regularly aggregates up to 1.54" (39mm) of precipitation. Throughout the year, in Yostville, there are 139.9 rainfall days, and 22.28" (566mm) of precipitation is accumulated.Snowfall
Months with snowfall in Yostville are January through May, October through December. In December, it is snowing for 8.4 days. Throughout December, 4.21" (107mm) of snow is accumulated. In Yostville, during the entire year, snow falls for 48.4 days and aggregates up to 22.01" (559mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:09 am and sunset at 4:33 pm. On the last day of December, sunrise is at 7:27 am and sunset at 4:43 pm EST.
Sunshine
In December, the average sunshine is 3.6h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 1 during December translates into the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. 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. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Yostville, PA
- Average high temperature in December: 35.6°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in December: 25.2°F
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in December
Yostville, PA
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Yostville, PA
- Average wind speed in December: 8mph
The windiest month (with the highest average wind speed) is February (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Yostville, PA
- Average humidity in December: 85%
The months with the highest relative humidity are February and December (85%).
The months with the lowest relative humidity are April, June and July (78%).
Average rainfall in December
Yostville, PA
- Average rainfall in December: 1.54"
The wettest months (with the highest rainfall) are May and July (2.4").
The driest months (with the least rainfall) are January and September (1.38").
Average rainfall days in December
Yostville, PA
- Average rainfall days in December: 8.1 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (5.2 days).
Average snowfall in December
Yostville, PA
- Average snowfall in December: 4.21"
The month with the highest snowfall is March (5.08").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Yostville, PA
- Average snowfall days in December: 8.4 days
The month with the highest number of snowfall days is February (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Yostville, PA
- Average daylight in December: 9h and 18min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 3h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 30min).
Average sunshine days in December
Yostville, PA
- Average sunshine days in December: 17.4 days
The month with the most sunshine days is January (18.4 days).
The month with the least sunshine days is May (11 days).
Average UV index in December
Yostville, PA
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Yostville, PA
- Average cloud cover in December: 64
The months with the most cloud cover are February and December (Cloud cover 64).
The month with the least cloud cover is July (Cloud cover 38).
Average visibility in December
Yostville, PA
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
