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
December is characterized by a clear drop in the average high-temperature, falling from November's icy 41.5°F (5.3°C) to a freezing cold 26.2°F (-3.2°C). Nighttime temperature dips to a mean of 15.4°F (-9.2°C) during December.Humidity
In Heron Lake, Minnesota, the average relative humidity in December is 86%.Rainfall
In December, in Heron Lake, the rain falls for 3.5 days. Throughout December, 1.06" (27mm) of precipitation is accumulated. In Heron Lake, during the entire year, the rain falls for 119.4 days and collects up to 21.1" (536mm) of precipitation.Snowfall
Months with snowfall in Heron Lake are January through May, October through December. In Heron Lake, in December, during 11.4 snowfall days, 3.58" (91mm) of snow is typically accumulated. Throughout the year, there are 48.3 snowfall days, and 20.08" (510mm) of snow is accumulated.Daylight
December has the shortest days of the year in Heron Lake, with an average of 9h and 0min of daylight.On the first day of the month, sunrise is at 7:36 am and sunset at 4:45 pm. On the last day of December, sunrise is at 7:55 am and sunset at 4:54 pm CST.
Sunshine
The average sunshine in December in Heron Lake, Minnesota, is 4.1h.UV index
The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: During December, 2 as the daily maximum UV index converts into the following advice:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Heron Lake in December?
What is the average humidity in December in Heron Lake?
How many days does it rain in December in Heron Lake?
How many days does it snow in December in Heron Lake?
What is the month with the shortest days in Heron Lake?
What is the average length of the day in December in Heron Lake?
When are sunrise and sunset in December in Heron Lake?
How long on average sun shines in December in Heron Lake?
What is the UV index intensity in December in Heron Lake?
Average temperature in December
Heron Lake, MN
- Average high temperature in December: 26.2°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 (21.7°F).
- Average low temperature in December: 15.4°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (8.6°F).
Average pressure in December
Heron Lake, MN
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in December
Heron Lake, MN
- Average wind speed in December: 10.7mph
The windiest months (with the highest average wind speed) are January, February and April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in December
Heron Lake, MN
- Average humidity in December: 86%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (68%).
Average rainfall in December
Heron Lake, MN
- Average rainfall in December: 1.06"
The wettest month (with the highest rainfall) is June (3.23").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in December
Heron Lake, MN
- Average rainfall days in December: 3.5 days
The month with the highest number of rainy days is June (17.2 days).
The months with the least rainy days are January and February (2.3 days).
Average snowfall in December
Heron Lake, MN
- Average snowfall in December: 3.58"
The month with the highest snowfall is February (4.84").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Heron Lake, MN
- Average snowfall days in December: 11.4 days
The month with the highest number of snowfall days is December (11.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Heron Lake, MN
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 4h and 1min
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 48min).
Average sunshine days in December
Heron Lake, MN
- Average sunshine days in December: 17.5 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is June (9.9 days).
Average UV index in December
Heron Lake, MN
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February and November (UV index 1).
Average cloud cover in December
Heron Lake, MN
- Average cloud cover in December: 56
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in December
Heron Lake, MN
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Heron Lake, Minnesota, USA
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