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 decrease in the average high-temperature is observed during December, shifting from a fresh 52.9°F (11.6°C) in November to an icy 42.1°F (5.6°C). Hermann records a steady low-temperature average of 29.1°F (-1.6°C) during December.Humidity
In December, the average relative humidity is 77%.Rainfall
In Hermann, during December, the rain falls for 7.5 days and regularly aggregates up to 1.85" (47mm) of precipitation. Throughout the year, there are 146.9 rainfall days, and 29.76" (756mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall in Hermann. In Hermann, during December, snow falls for 3.9 days and regularly aggregates up to 1.57" (40mm) of snow. In Hermann, during the entire year, snow falls for 20.1 days and aggregates up to 8.74" (222mm) of snow.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 7:05 am and sunset at 4:44 pm. On the last day of December, sunrise is at 7:23 am and sunset at 4:54 pm CST.
Sunshine
In Hermann, the average sunshine in December is 5h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.Note: In December, the maximum UV index of 2 suggests these recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
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 much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days in Hermann?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Hermann have in December?
What are the months with the lowest UV index in Hermann?
What is the UV index reading in December?
Average temperature in December
Hermann, MO
- Average high temperature in December: 42.1°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 (37.4°F).
- Average low temperature in December: 29.1°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 (23.7°F).
Average pressure in December
Hermann, 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
Hermann, MO
- Average wind speed in December: 8.2mph
The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.4mph).
Average humidity in December
Hermann, MO
- Average humidity in December: 77%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Hermann, MO
- Average rainfall in December: 1.85"
The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is January (1.5").
Average rainfall days in December
Hermann, MO
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in December
Hermann, MO
- Average snowfall in December: 1.57"
The month with the highest snowfall is February (2.8").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Hermann, MO
- Average snowfall days in December: 3.9 days
The month with the highest number of snowfall days is February (6.3 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Hermann, 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: 5h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in December
Hermann, MO
- Average sunshine days in December: 18.9 days
The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is May (11 days).
Average UV index in December
Hermann, 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
Hermann, MO
- Average cloud cover in December: 47
The months with the most cloud cover are January and February (Cloud cover 49).
The months with the least cloud cover are June and August (Cloud cover 29).
Average visibility in December
Hermann, 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).
Hermann, Missouri, USA
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