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 arrival of December correlates with a minor temperature reduction, down from November's mild 57°F (13.9°C) to a frosty 48.2°F (9°C). Hayti Heights witnesses a consistent average low-temperature of 36.3°F (2.4°C) throughout December.Humidity
In December, the average relative humidity is 77%.Rainfall
In Hayti Heights, in December, during 8.5 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. Throughout the year, there are 107.7 rainfall days, and 10.51" (267mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, October through December. In Hayti Heights, during December, snow falls for 0.5 days and regularly aggregates up to 0.16" (4mm) of snow. In Hayti Heights, during the entire year, snow falls for 4.5 days and aggregates up to 0.98" (25mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 42min of daylight.On the first day of December, sunrise is at 6:52 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 4:54 pm CST.
Sunshine
In December, the average sunshine is 5h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In December, the UV index of 2 transforms into the following advice:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. To protect against the Sun's most potent rays, avoid direct exposure around midday. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What is the average humidity in December?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Hayti Heights have in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Hayti Heights, MO
- Average high temperature in December: 48.2°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (44.1°F).
- Average low temperature in December: 36.3°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure in December
Hayti Heights, MO
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Hayti Heights, MO
- Average wind speed in December: 8.8mph
The windiest month (with the highest average wind speed) is February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in December
Hayti Heights, MO
- Average humidity in December: 77%
The month with the highest relative humidity is March (78%).
The month with the lowest relative humidity is October (68%).
Average rainfall in December
Hayti Heights, MO
- Average rainfall in December: 0.79"
The wettest month (with the highest rainfall) is February (1.26").
The driest month (with the least rainfall) is September (0.35").
Average rainfall days in December
Hayti Heights, MO
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is July (12 days).
The month with the least rainy days is November (6.3 days).
Average snowfall in December
Hayti Heights, MO
- Average snowfall in December: 0.16"
The month with the highest snowfall is March (0.35").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in December
Hayti Heights, MO
- Average snowfall days in December: 0.5 days
The month with the highest number of snowfall days is February (1.5 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Hayti Heights, MO
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Hayti Heights, MO
- Average sunshine days in December: 20.9 days
The month with the most sunshine days is October (22.5 days).
The month with the least sunshine days is July (15.7 days).
Average UV index in December
Hayti Heights, MO
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Hayti Heights, MO
- Average cloud cover in December: 45
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 24).
Average visibility in December
Hayti Heights, 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).
Hayti Heights, Missouri, USA
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