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
The commencement of December involves a temperature shift, with the average high-temperature dropping from a fresh 51.1°F (10.6°C) in November to a wintry 41.9°F (5.5°C). During December, the average low-temperature is recorded at a freezing cold 30.9°F (-0.6°C).Humidity
In Willow Grove, the average relative humidity in December is 81%.Rainfall
In December, the rain falls for 11.1 days. Throughout December, 2.13" (54mm) of precipitation is accumulated. In Willow Grove, during the entire year, the rain falls for 153.8 days and collects up to 26.5" (673mm) of precipitation.Snowfall
Months with snowfall in Willow Grove are January through April, November and December. In December, in Willow Grove, it is snowing for 5.5 days. Throughout December, 1.26" (32mm) of snow is accumulated. In Willow Grove, Kentucky, during the entire year, snow falls for 26.1 days and aggregates up to 7.13" (181mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of December in Willow Grove, Kentucky, sunrise is at 7:36 am and sunset at 5:15 pm. On the last day of the month, sunrise is at 7:54 am and sunset at 5:25 pm EST.
Sunshine
The average sunshine in December in Willow Grove is 4h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: The daily maximum UV index of 2 in December interprets into the following advice:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Frequently asked questions
How cold does it get in Willow Grove in December?
What is the average humidity in December in Willow Grove?
How much does it rain in Willow Grove in December?
How much does it snow in Willow Grove in December?
What is the month with the shortest days in Willow Grove?
What is the average length of the day in December in Willow Grove?
When are sunrise and sunset in December in Willow Grove?
How many hours of sunshine does Willow Grove have in December?
When is the lowest UV index in Willow Grove?
What is the UV index intensity in December in Willow Grove?
Average temperature in December
Willow Grove, KY
- Average high temperature in December: 41.9°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in December: 30.9°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).
Average pressure in December
Willow Grove, KY
- Average pressure in December: 30.13"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Willow Grove, KY
- Average wind speed in December: 8.3mph
The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in December
Willow Grove, KY
- Average humidity in December: 81%
The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are September and October (75%).
Average rainfall in December
Willow Grove, KY
- Average rainfall in December: 2.13"
The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in December
Willow Grove, KY
- Average rainfall days in December: 11.1 days
The month with the highest number of rainy days is May (18.1 days).
The months with the least rainy days are February and November (9.1 days).
Average snowfall in December
Willow Grove, KY
- Average snowfall in December: 1.26"
The month with the highest snowfall is March (1.97").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Willow Grove, KY
- Average snowfall days in December: 5.5 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Willow Grove, KY
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 4h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Willow Grove, KY
- Average sunshine days in December: 15.1 days
The months with the most sunshine days are October and November (19 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in December
Willow Grove, KY
- 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
Willow Grove, KY
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Willow Grove, KY
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are May and July (5mi).
Willow Grove, Kentucky, USA
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