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
As December begins, there is a decrease in the average high-temperature, falling from a fresh 50.4°F (10.2°C) in November to an icy 41.2°F (5.1°C). During the month of December, Ephrata experiences a steady low-temperature average of 29.8°F (-1.2°C).Humidity
In December, the average relative humidity is 80%.Rainfall
In Ephrata, in December, during 8.6 rainfall days, 0.83" (21mm) of precipitation is typically accumulated. Throughout the year, there are 127.9 rainfall days, and 11.69" (297mm) of precipitation is accumulated.Snowfall
Months with snowfall in Ephrata are January through March, May, November and December. In Ephrata, during December, snow falls for 3 days and regularly aggregates up to 0.43" (11mm) of snow. Throughout the year, there are 18.5 snowfall days, and 3.86" (98mm) of snow is accumulated.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year.On the first day of December in Ephrata, sunrise is at 7:08 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:49 pm EST.
Sunshine
The average sunshine in December is 4.8h.UV index
The months with the lowest UV index are January through March, 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 the ordinary person.Note: The daily high UV index of 2 in December translates into this advice:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold?
What is the average humidity in December?
How much 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?
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 reading in December in Ephrata?
Average temperature in December
Ephrata, PA
- Average high temperature in December: 41.2°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in December: 29.8°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 (22.5°F).
Average pressure in December
Ephrata, 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
Ephrata, PA
- Average wind speed in December: 8.1mph
The windiest months (with the highest average wind speed) are January and March (8.6mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in December
Ephrata, PA
- Average humidity in December: 80%
The months with the highest relative humidity are February, May and October (81%).
The month with the lowest relative humidity is April (76%).
Average rainfall in December
Ephrata, PA
- Average rainfall in December: 0.83"
The wettest month (with the highest rainfall) is July (1.46").
The driest month (with the least rainfall) is February (0.67").
Average rainfall days in December
Ephrata, PA
- Average rainfall days in December: 8.6 days
The month with the highest number of rainy days is July (14.8 days).
The month with the least rainy days is January (6.5 days).
Average snowfall in December
Ephrata, PA
- Average snowfall in December: 0.43"
The month with the highest snowfall is January (1.18").
The months with the least snowfall are April, June, July, August, September and October (0").
Average snowfall days in December
Ephrata, PA
- Average snowfall days in December: 3 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Ephrata, 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 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Ephrata, PA
- Average sunshine days in December: 19.5 days
The month with the most sunshine days is November (21 days).
The month with the least sunshine days is July (12.5 days).
Average UV index in December
Ephrata, PA
- Average UV index in December: 2
The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Ephrata, PA
- Average cloud cover in December: 49
The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in December
Ephrata, PA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, November and December (6mi).
The months with the lowest visibility are May, August, September and October (5mi).
Ephrata, Pennsylvania, USA
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