December weather forecastHerman, MN
December
Weather in December
December, the first month of the winter in Herman, is still a freezing cold month, with an average temperature varying between 23°F (-5°C) and 12.6°F (-10.8°C).Temperature
Herman's transition into December is marked by a clear drop in the average high-temperature, receding from a wintry 38.7°F (3.7°C) in November to a subzero cold 23°F (-5°C). Herman encounters a steady low-temperature average of 12.6°F (-10.8°C) throughout the month of December.Humidity
In December, the average relative humidity is 87%.Rainfall
In Herman, in December, during 3.4 rainfall days, 0.98" (25mm) of precipitation is typically accumulated. Throughout the year, there are 105.3 rainfall days, and 19.29" (490mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. The month with the most snowfall in Herman is December, when snow falls for 13.5 days and typically aggregates up to 4.29" (109mm) of snow.Daylight
The month with the shortest days is December, with an average of 8h and 42min of daylight.On the first day of the month, sunrise is at 7:46 am and sunset at 4:41 pm. On the last day of December, in Herman, sunrise is at 8:05 am and sunset at 4:50 pm CST.
Sunshine
In December, the average sunshine is 3.4h.UV index
The months with the lowest UV index in Herman are January, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index, 1 during December, leads to the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Boost your sun resistance with garments that are densely woven yet spacious. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Herman, MN
- Average high temperature in December: 23°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (18°F).
- Average low temperature in December: 12.6°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (4.5°F).
Average pressure in December
Herman, MN
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in December
Herman, MN
- Average wind speed in December: 9.9mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in December
Herman, MN
- Average humidity in December: 87%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are April and May (67%).
Average rainfall in December
Herman, MN
- Average rainfall in December: 0.98"
The wettest months (with the highest rainfall) are June and July (3.15").
The driest months (with the least rainfall) are January and February (0.55").
Average rainfall days in December
Herman, MN
- Average rainfall days in December: 3.4 days
The month with the highest number of rainy days is June (15.7 days).
The month with the least rainy days is February (1.9 days).
Average snowfall in December
Herman, MN
- Average snowfall in December: 4.29"
The month with the highest snowfall is December (4.29").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Herman, MN
- Average snowfall days in December: 13.5 days
The month with the highest number of snowfall days is January (14.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Herman, MN
- Average daylight in December: 8h and 42min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 3h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in December
Herman, MN
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is September (19.5 days).
The month with the least sunshine days is June (12.1 days).
Average UV index in December
Herman, MN
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Herman, MN
- Average cloud cover in December: 63
The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 29).
Average visibility in December
Herman, MN
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
