December weather forecastPhiladelphia, MO
December
Weather in December
December, the first month of the winter in Philadelphia, is also an icy month, with an average temperature ranging between min 27.1°F (-2.7°C) and max 39.6°F (4.2°C).Temperature
December suggests a modest reduction in the average high-temperature, shifting from a fresh 50.9°F (10.5°C) in November to a wintry 39.6°F (4.2°C). An average low-temperature of 27.1°F (-2.7°C) is recorded in the month of December.Humidity
In Philadelphia, Missouri, the average relative humidity in December is 77%.Rainfall
In December, the rain falls for 7.2 days. Throughout December, 1.54" (39mm) of precipitation is accumulated. In Philadelphia, Missouri, during the entire year, the rain falls for 138.1 days and collects up to 26.97" (685mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in Philadelphia. In Philadelphia, in December, snow falls for 4.5 days, with typically accumulated 1.54" (39mm) of snow. Throughout the year, in Philadelphia, there are 23 snowfall days, and 9.92" (252mm) of snow is accumulated.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year in Philadelphia.On the first day of the month, sunrise is at 7:09 am and sunset at 4:42 pm. On the last day of December, sunrise is at 7:28 am and sunset at 4:52 pm CST.
Sunshine
In December, the average sunshine is 4.9h.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 of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for average individuals.Note: An average maximum UV index of 2 in December leads to these recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. 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 into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Philadelphia, MO
- Average high temperature in December: 39.6°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (33.6°F).
- Average low temperature in December: 27.1°F
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (21°F).
Average pressure in December
Philadelphia, MO
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Philadelphia, MO
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).
Average humidity in December
Philadelphia, MO
- Average humidity in December: 77%
The months with the highest relative humidity are May, June and July (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Philadelphia, MO
- Average rainfall in December: 1.54"
The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is January (1.3").
Average rainfall days in December
Philadelphia, MO
- Average rainfall days in December: 7.2 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (5.4 days).
Average snowfall in December
Philadelphia, MO
- Average snowfall in December: 1.54"
The month with the highest snowfall is January (3.7").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Philadelphia, MO
- Average snowfall days in December: 4.5 days
The month with the highest number of snowfall days is January (7.3 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
Philadelphia, MO
- Average daylight in December: 9h and 24min
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 54min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in December
Philadelphia, MO
- Average sunshine days in December: 19.4 days
The months with the most sunshine days are January and December (19.4 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in December
Philadelphia, MO
- Average UV index in December: 2
The months with the highest UV index are 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
Philadelphia, MO
- Average cloud cover in December: 48
The month with the most cloud cover is January (Cloud cover 51).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in December
Philadelphia, MO
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
