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 clear reduction in the average high-temperature marks the arrival of December, falling from a wintry 37.8°F (3.2°C) in November to a subzero cold 23.2°F (-4.9°C). During December, Grasston's temperature falls to a steady low-temperature average of 12.9°F (-10.6°C).Humidity
In Grasston, the average relative humidity in December is 88%.Rainfall
In Grasston, in December, it is raining for 3 days, with typically 1.02" (26mm) of accumulated precipitation. Throughout the year, in Grasston, there are 116.6 rainfall days, and 20.71" (526mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. The month with the most snowfall is December, when snow falls for 11.9 days and typically aggregates up to 5.55" (141mm) of snow.Daylight
With an average of 8h and 42min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:34 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:53 am and sunset at 4:38 pm CST.
Sunshine
In Grasston, the average sunshine in December is 3.2h.UV index
The months with the lowest UV index in Grasston are January, February, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the average person.Note: In December, the maximum UV index of 1 suggests these recommendations:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. To protect against the Sun's most potent rays, avoid direct exposure around midday. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
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?
When does it snow the most?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Grasston have in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Grasston have in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Grasston, MN
- Average high temperature in December: 23.2°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (18.1°F).
- Average low temperature in December: 12.9°F
The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (5.2°F).
Average pressure in December
Grasston, MN
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Grasston, MN
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in December
Grasston, MN
- Average humidity in December: 88%
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are April and May (72%).
Average rainfall in December
Grasston, MN
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is June (3.39").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in December
Grasston, MN
- Average rainfall days in December: 3 days
The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is January (1.8 days).
Average snowfall in December
Grasston, MN
- Average snowfall in December: 5.55"
The month with the highest snowfall is December (5.55").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Grasston, MN
- Average snowfall days in December: 11.9 days
The months with the highest number of snowfall days are January and February (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Grasston, MN
- Average daylight in December: 8h and 4min
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 1min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in December
Grasston, MN
- Average sunshine days in December: 16.9 days
The months with the most sunshine days are January and November (18.1 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in December
Grasston, MN
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Grasston, MN
- Average cloud cover in December: 67
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in December
Grasston, MN
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
Grasston, Minnesota, USA
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