December weather forecastPleasant Hill, MO
December
Weather in December
December, the first month of the winter in Pleasant Hill, is also an icy month, with an average temperature fluctuating between 41.5°F (5.3°C) and 27.9°F (-2.3°C).Temperature
The onset of December coincides with a reduction in the average high-temperature, falling from a cool 52.9°F (11.6°C) in November to an icy 41.5°F (5.3°C). In Pleasant Hill, the average low-temperature during the month of December is a subzero cold 27.9°F (-2.3°C).Humidity
In Pleasant Hill, the average relative humidity in December is 74%.Rainfall
In Pleasant Hill, in December, it is raining for 6.4 days, with typically 1.57" (40mm) of accumulated precipitation. Throughout the year, there are 139 rainfall days, and 29.33" (745mm) of precipitation is accumulated.Snowfall
Months with snowfall in Pleasant Hill, Missouri, are January through May, October through December. In December, it is snowing for 3.1 days. Throughout December, 0.94" (24mm) of snow is accumulated. In Pleasant Hill, during the entire year, snow falls for 18.5 days and aggregates up to 9.57" (243mm) of snow.Daylight
December has the shortest days of the year in Pleasant Hill, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 7:17 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 5:05 pm CST.
Sunshine
The average sunshine in December in Pleasant Hill is 5.4h.UV index
The months with the lowest UV index in Pleasant Hill are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: During December, 2 as the daily maximum UV index converts into the following advice:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Pleasant Hill, MO
- Average high temperature in December: 41.5°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in December: 27.9°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in December
Pleasant Hill, MO
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Pleasant Hill, MO
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is March (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in December
Pleasant Hill, MO
- Average humidity in December: 74%
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are October and November (71%).
Average rainfall in December
Pleasant Hill, MO
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is May (4.53").
The driest month (with the least rainfall) is January (1.02").
Average rainfall days in December
Pleasant Hill, MO
- Average rainfall days in December: 6.4 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (5.4 days).
Average snowfall in December
Pleasant Hill, MO
- Average snowfall in December: 0.94"
The month with the highest snowfall is February (3.5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Pleasant Hill, MO
- Average snowfall days in December: 3.1 days
The month with the highest number of snowfall days is February (5.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Pleasant Hill, MO
- Average daylight in December: 9h and 30min
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: 5h and 24min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in December
Pleasant Hill, MO
- Average sunshine days in December: 22.1 days
The month with the most sunshine days is December (22.1 days).
The month with the least sunshine days is May (10.6 days).
Average UV index in December
Pleasant Hill, MO
- 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
Pleasant Hill, MO
- Average cloud cover in December: 41
The month with the most cloud cover is March (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 26).
Average visibility in December
Pleasant Hill, 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).
