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 beginning of December involves a decrease in the average high-temperature, transitioning from a cool 51.6°F (10.9°C) in November to a cold 38.3°F (3.5°C). Throughout the month of December, the nighttime temperature dips to an average of 25.3°F (-3.7°C).Humidity
In December, the average relative humidity in Saint Joseph is 76%.Rainfall
In Saint Joseph, during December, the rain falls for 6.1 days and regularly aggregates up to 1.06" (27mm) of precipitation. In Saint Joseph, during the entire year, the rain falls for 133.5 days and collects up to 27.28" (693mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Saint Joseph. In Saint Joseph, during December, snow falls for 4.5 days and regularly aggregates up to 1.26" (32mm) of snow. Throughout the year, in Saint Joseph, there are 22.7 snowfall days, and 8.03" (204mm) of snow is accumulated.Daylight
The month with the shortest days in Saint Joseph, Missouri, is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:22 am and sunset at 4:55 pm. On the last day of December, in Saint Joseph, sunrise is at 7:40 am and sunset at 5:05 pm CST.
Sunshine
The average sunshine in December is 5.5h.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 value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index, 2 during December, leads to the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Experience reduced UV exposure by about half when donning a wide-brim hat. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Frequently asked questions
How cold is December in Saint Joseph?
What is the average humidity in December in Saint Joseph?
How much does it rain in Saint Joseph in December?
How much does it snow in Saint Joseph in December?
What is the month with the shortest days in Saint Joseph?
What is the average length of the day in December in Saint Joseph?
When are sunrise and sunset in December in Saint Joseph?
How many hours of sunshine does Saint Joseph have in December?
What is the month with the lowest UV index in Saint Joseph?
How high is the UV index in December in Saint Joseph?
Average temperature in December
Saint Joseph, MO
- Average high temperature in December: 38.3°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (34.7°F).
- Average low temperature in December: 25.3°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in December
Saint Joseph, 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 (29.88"Hg).
Average wind speed in December
Saint Joseph, MO
- Average wind speed in December: 9.2mph
The windiest months (with the highest average wind speed) are February and March (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.4mph).
Average humidity in December
Saint Joseph, MO
- Average humidity in December: 76%
The month with the highest relative humidity is June (79%).
The month with the lowest relative humidity is October (69%).
Average rainfall in December
Saint Joseph, MO
- Average rainfall in December: 1.06"
The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is February (0.87").
Average rainfall days in December
Saint Joseph, MO
- Average rainfall days in December: 6.1 days
The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in December
Saint Joseph, MO
- Average snowfall in December: 1.26"
The month with the highest snowfall is January (2.68").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Saint Joseph, MO
- Average snowfall days in December: 4.5 days
The month with the highest number of snowfall days is January (6.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Saint Joseph, MO
- Average daylight in December: 9h and 2min
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: 5h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in December
Saint Joseph, MO
- Average sunshine days in December: 21.1 days
The month with the most sunshine days is December (21.1 days).
The month with the least sunshine days is June (11.2 days).
Average UV index in December
Saint Joseph, 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
Saint Joseph, MO
- Average cloud cover in December: 42
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in December
Saint Joseph, 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).
Saint Joseph, Missouri, USA
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