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
A shift in Saint Robert's weather is observed as November turns into December, with the average high temperature reducing from a cool 54.3°F (12.4°C) to a chilly 43.7°F (6.5°C). Throughout December, Saint Robert witnesses a consistent average low-temperature of 29.7°F (-1.3°C).Humidity
In December, the average relative humidity is 76%.Rainfall
In December, in Saint Robert, the rain falls for 7.5 days. Throughout December, 1.85" (47mm) of precipitation is accumulated. Throughout the year, in Saint Robert, there are 147.7 rainfall days, and 31.46" (799mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Saint Robert, in December, snow falls for 5 days, with typically accumulated 1.93" (49mm) of snow. Throughout the year, there are 23.8 snowfall days, and 10.12" (257mm) of snow is accumulated.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:06 am and sunset at 4:49 pm. On the last day of December, in Saint Robert, Missouri, sunrise is at 7:24 am and sunset at 4:59 pm CST.
Sunshine
In December, the average sunshine is 5.2h.UV index
January, February 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 radiation for the ordinary person.Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Frequently asked questions
Is December cold in Saint Robert?
What is the average humidity in December in Saint Robert?
How many days does it rain in December in Saint Robert?
How much does it snow in Saint Robert in December?
What is the month with the shortest days in Saint Robert?
How many hours of daylight does Saint Robert have in December?
When are sunrise and sunset in December in Saint Robert?
How long on average sun shines in December in Saint Robert?
When is the lowest UV index in Saint Robert?
What is the UV index intensity in December in Saint Robert?
Average temperature in December
Saint Robert, MO
- Average high temperature in December: 43.7°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (40.3°F).
- Average low temperature in December: 29.7°F
The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure in December
Saint Robert, MO
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Saint Robert, MO
- Average wind speed in December: 8.3mph
The windiest month (with the highest average wind speed) is January (8.7mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in December
Saint Robert, MO
- Average humidity in December: 76%
The months with the highest relative humidity are March and May (77%).
The months with the lowest relative humidity are August, September and October (73%).
Average rainfall in December
Saint Robert, MO
- Average rainfall in December: 1.85"
The wettest month (with the highest rainfall) is May (4.29").
The driest month (with the least rainfall) is January (1.61").
Average rainfall days in December
Saint Robert, MO
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is December (7.5 days).
Average snowfall in December
Saint Robert, MO
- Average snowfall in December: 1.93"
The month with the highest snowfall is February (3.54").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Saint Robert, MO
- Average snowfall days in December: 5 days
The month with the highest number of snowfall days is February (7.3 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 Robert, MO
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are January and February (Average sunshine: 4h and 54min).
Average sunshine days in December
Saint Robert, MO
- Average sunshine days in December: 19 days
The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is May (11.7 days).
Average UV index in December
Saint Robert, 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 and December (UV index 2).
Average cloud cover in December
Saint Robert, MO
- Average cloud cover in December: 46
The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in December
Saint Robert, MO
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Saint Robert, Missouri, USA
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