December weather forecastPalmyra, MO
December
Weather in December
The first month of the winter, December, is also a wintry month in Palmyra, Missouri, with an average temperature ranging between min 27.1°F (-2.7°C) and max 39.6°F (4.2°C).Temperature
December brings a minor decrease, with the average high-temperature reducing 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 during the nights in December in Palmyra.Humidity
In Palmyra, the average relative humidity in December is 77%.Rainfall
In Palmyra, during December, the rain falls for 7.2 days and regularly aggregates up to 1.54" (39mm) of precipitation. In Palmyra, during the entire year, the rain falls for 138.1 days and collects up to 26.97" (685mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Palmyra, in December, during 4.5 snowfall days, 1.54" (39mm) of snow is typically accumulated. Throughout the year, 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.On the first day of December, sunrise is at 7:08 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 4:51 pm CST.
Sunshine
In Palmyra, the average sunshine in December 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 reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: A maximum daily UV index of 2 during December morphs into the following directions:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. 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
Palmyra, 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
Palmyra, 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
Palmyra, 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
Palmyra, 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
Palmyra, 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
Palmyra, 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
Palmyra, 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
Palmyra, 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
Palmyra, MO
- Average daylight in December: 9h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
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
Palmyra, 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
Palmyra, 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
Palmyra, 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
Palmyra, 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).
