December weather forecastLa Anna, PA
December
Weather in December
The first month of the winter, December, is also an icy month in La Anna, Pennsylvania, with an average temperature ranging between min 25.3°F (-3.7°C) and max 36.1°F (2.3°C).Temperature
December suggests a modest reduction in the average high-temperature, shifting from a chilly 45.5°F (7.5°C) in November to a cold 36.1°F (2.3°C). The low-temperature average for La Anna during December stands at a subzero cold 25.3°F (-3.7°C).Humidity
In December, the average relative humidity in La Anna is 84%.Rainfall
In La Anna, during December, the rain falls for 10.8 days and regularly aggregates up to 2.83" (72mm) of precipitation. Throughout the year, in La Anna, Pennsylvania, there are 154.8 rainfall days, and 32.24" (819mm) of precipitation is accumulated.Snowfall
Months with snowfall in La Anna are January through May, October through December. In December, it is snowing for 13.2 days. Throughout December, 7.13" (181mm) of snow is accumulated. Throughout the year, in La Anna, there are 62.1 snowfall days, and 38.86" (987mm) of snow is accumulated.Daylight
December has the shortest days of the year in La Anna, with an average of 9h and 18min of daylight.On the first day of December in La Anna, sunrise is at 7:08 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:42 pm EST.
Sunshine
The average sunshine in December is 3.9h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 1 during December leads to these advisories:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
La Anna, PA
- Average high temperature in December: 36.1°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in December: 25.3°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in December
La Anna, PA
- Average pressure in December: 30.09"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
La Anna, PA
- Average wind speed in December: 8.1mph
The windiest months (with the highest average wind speed) are January and February (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in December
La Anna, PA
- Average humidity in December: 84%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is July (77%).
Average rainfall in December
La Anna, PA
- Average rainfall in December: 2.83"
The wettest month (with the highest rainfall) is July (3.27").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in December
La Anna, PA
- Average rainfall days in December: 10.8 days
The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is January (7.1 days).
Average snowfall in December
La Anna, PA
- Average snowfall in December: 7.13"
The month with the highest snowfall is February (8.03").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
La Anna, PA
- Average snowfall days in December: 13.2 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
La Anna, 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 54min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in December
La Anna, PA
- Average sunshine days in December: 12.2 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is May (10.9 days).
Average UV index in December
La Anna, PA
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
La Anna, PA
- Average cloud cover in December: 60
The months with the most cloud cover are February and December (Cloud cover 60).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in December
La Anna, 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).
