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
Stepping into December, New Haven observes a temperature decline, with the average high falling from November's cool 53.8°F (12.1°C) to a chilly 43°F (6.1°C). During the nights in December, an average low-temperature of 29.5°F (-1.4°C) is observed.Humidity
The average relative humidity in December is 76%.Rainfall
In New Haven, in December, it is raining for 6.8 days, with typically 1.18" (30mm) of accumulated precipitation. Throughout the year, there are 129.1 rainfall days, and 20.59" (523mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In New Haven, in December, snow falls for 4.3 days, with typically accumulated 1.18" (30mm) of snow. Throughout the year, there are 21.5 snowfall days, and 4.92" (125mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 7:04 am and sunset at 4:44 pm. On the last day of December, sunrise is at 7:22 am and sunset at 4:53 pm CST.
Sunshine
In New Haven, the average sunshine in December is 4.9h.UV index
The months with the lowest UV index in New Haven are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: A daily maximum UV index of 2 in December translates into the following instructions:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Direct Sun exposure should be minimized especially during midday when radiation is most intense. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How many days 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 New Haven have in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
New Haven, MO
- Average high temperature in December: 43°F
The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is January (38.5°F).
- Average low temperature in December: 29.5°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 (24.1°F).
Average pressure in December
New Haven, 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 (29.92"Hg).
Average wind speed in December
New Haven, MO
- Average wind speed in December: 8mph
The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in December
New Haven, MO
- Average humidity in December: 76%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
New Haven, MO
- Average rainfall in December: 1.18"
The wettest month (with the highest rainfall) is May (2.56").
The driest month (with the least rainfall) is January (1.02").
Average rainfall days in December
New Haven, MO
- Average rainfall days in December: 6.8 days
The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is January (6.4 days).
Average snowfall in December
New Haven, MO
- Average snowfall in December: 1.18"
The month with the highest snowfall is February (1.69").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
New Haven, MO
- Average snowfall days in December: 4.3 days
The month with the highest number of snowfall days is January (6.7 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in December /
Average sunshine in December
New Haven, MO
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 4h and 42min).
Average sunshine days in December
New Haven, MO
- Average sunshine days in December: 19.8 days
The month with the most sunshine days is January (20.2 days).
The month with the least sunshine days is May (12.8 days).
Average UV index in December
New Haven, MO
- Average UV index in December: 2
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
New Haven, MO
- Average cloud cover in December: 48
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in December
New Haven, MO
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, September, October, November and December (6mi).
The months with the lowest visibility are May and August (5mi).
New Haven, Missouri, USA
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