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
Fortescue observes a minor decrease in the average high-temperature with the arrival of December, falling from November's cool 51.4°F (10.8°C) to an icy 37.6°F (3.1°C). During December, Fortescue experiences a consistent low-temperature average of 24.8°F (-4°C).Humidity
In Fortescue, Missouri, the average relative humidity in December is 75%.Rainfall
In Fortescue, in December, during 4.1 rainfall days, 0.98" (25mm) of precipitation is typically accumulated. Throughout the year, there are 120.1 rainfall days, and 22.8" (579mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Fortescue, during December, snow falls for 4.2 days and regularly aggregates up to 1.18" (30mm) of snow. In Fortescue, during the entire year, snow falls for 22 days and aggregates up to 8.7" (221mm) of snow.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:24 am and sunset at 4:56 pm. On the last day of December, in Fortescue, sunrise is at 7:43 am and sunset at 5:06 pm CST.
Sunshine
In December, the average sunshine in Fortescue, Missouri, 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 of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 2 during December translates into the following guidance:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in Fortescue in December?
What is the average humidity in December in Fortescue?
How many days does it rain in December in Fortescue?
How many days does it snow in December in Fortescue?
What is the month with the shortest days in Fortescue?
How many hours of daylight does Fortescue have in December?
When are sunrise and sunset in December in Fortescue?
How many hours of sunshine does Fortescue have in December?
What are the months with the lowest UV index in Fortescue?
How high is the UV index in December in Fortescue?
Average temperature in December
Fortescue, MO
- Average high temperature in December: 37.6°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (34.3°F).
- Average low temperature in December: 24.8°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 (19.9°F).
Average pressure in December
Fortescue, 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 (29.87"Hg).
Average wind speed in December
Fortescue, MO
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is March (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in December
Fortescue, MO
- Average humidity in December: 75%
The months with the highest relative humidity are January, June, July and August (76%).
The month with the lowest relative humidity is October (66%).
Average rainfall in December
Fortescue, MO
- Average rainfall in December: 0.98"
The wettest month (with the highest rainfall) is May (3.66").
The driest month (with the least rainfall) is February (0.67").
Average rainfall days in December
Fortescue, MO
- Average rainfall days in December: 4.1 days
The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is January (3.7 days).
Average snowfall in December
Fortescue, MO
- Average snowfall in December: 1.18"
The month with the highest snowfall is January (2.52").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Fortescue, MO
- Average snowfall days in December: 4.2 days
The month with the highest number of snowfall days is February (6.2 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
Fortescue, MO
- Average daylight in December: 9h and 2min
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: 5h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in December
Fortescue, MO
- Average sunshine days in December: 22.2 days
The month with the most sunshine days is December (22.2 days).
The month with the least sunshine days is May (12 days).
Average UV index in December
Fortescue, 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
Fortescue, MO
- Average cloud cover in December: 41
The month with the most cloud cover is March (Cloud cover 45).
The months with the least cloud cover are June and July (Cloud cover 27).
Average visibility in December
Fortescue, 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).
Fortescue, Missouri, USA
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