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 shift to December brings a decrease in the average high-temperature, falling from a moderate 55.6°F (13.1°C) in November to a frosty 46.2°F (7.9°C). Nighttime temperature in Halloran dips to a mean of 34°F (1.1°C) during December.Humidity
In December, the average relative humidity is 77%.Rainfall
The month with the least rainfall is December, when the rain falls for 6.8 days and typically collects 0.75" (19mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Halloran. In Halloran, during December, snow falls for 1.2 days and regularly aggregates up to 0.12" (3mm) of snow. In Halloran, during the entire year, snow falls for 6.5 days and aggregates up to 0.94" (24mm) 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 in Halloran, sunrise is at 6:57 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:56 pm CST.
Sunshine
In Halloran, the average sunshine in December is 5.1h.UV index
January 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 minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 2 suggests these recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Halloran?
What is the average humidity in December in Halloran?
What is the driest month in Halloran?
How much does it rain in Halloran in December?
How much does it snow in Halloran in December?
What is the month with the shortest days in Halloran?
How many hours of daylight does Halloran have in December?
What time are sunrise and sunset in December in Halloran?
How long on average sun shines in December in Halloran?
What are the months with the lowest UV index in Halloran?
What is the UV index intensity in December in Halloran?
Average temperature in December
Halloran, MO
- Average high temperature in December: 46.2°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (42.8°F).
- Average low temperature in December: 34°F
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).
Average pressure in December
Halloran, MO
- Average pressure in December: 30.14"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
Halloran, MO
- Average wind speed in December: 8.2mph
The windiest month (with the highest average wind speed) is February (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in December
Halloran, MO
- Average humidity in December: 77%
The months with the highest relative humidity are March and May (78%).
The month with the lowest relative humidity is October (69%).
Average rainfall in December
Halloran, MO
- Average rainfall in December: 0.75"
The wettest month (with the highest rainfall) is May (2.17").
The driest month (with the least rainfall) is December (0.75").
Average rainfall days in December
Halloran, MO
- Average rainfall days in December: 6.8 days
The months with the highest number of rainy days are May and July (14.3 days).
The month with the least rainy days is January (6 days).
Average snowfall in December
Halloran, MO
- Average snowfall in December: 0.12"
The month with the highest snowfall is February (0.39").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Halloran, MO
- Average snowfall days in December: 1.2 days
The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Halloran, 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 1min
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 54min).
Average sunshine days in December
Halloran, MO
- Average sunshine days in December: 21.8 days
The month with the most sunshine days is January (22.5 days).
The month with the least sunshine days is July (13.8 days).
Average UV index in December
Halloran, 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 and December (UV index 2).
Average cloud cover in December
Halloran, MO
- Average cloud cover in December: 44
The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 24).
Average visibility in December
Halloran, 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).
Halloran, Missouri, USA
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