December weather forecastLachine, MI
December
Weather in December
December, the first month of the winter in Lachine, is still a freezing cold month, with an average temperature ranging between min 24.3°F (-4.3°C) and max 31.1°F (-0.5°C).Temperature
As Lachine enters December, the average high-temperature decreases from the an icy 41.9°F (5.5°C) of November to a freezing cold 31.1°F (-0.5°C). In Lachine, the December nights are characterized by an average low-temperature of 24.3°F (-4.3°C), a minor dip from daytime readings.Humidity
In Lachine, Michigan, the average relative humidity in December is 83%.Rainfall
In Lachine, Michigan, during December, the rain falls for 6 days and regularly aggregates up to 1.02" (26mm) of precipitation. Throughout the year, there are 118.1 rainfall days, and 16.42" (417mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Lachine. In Lachine, during December, snow falls for 16.4 days and regularly aggregates up to 2.8" (71mm) of snow. Throughout the year, there are 80.2 snowfall days, and 19.84" (504mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 48min of daylight.On the first day of the month, sunrise is at 7:53 am and sunset at 4:54 pm. On the last day of December, sunrise is at 8:13 am and sunset at 5:03 pm EST.
Sunshine
In Lachine, the average sunshine in December is 2.4h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the average person.Note: The UV index of 1 during December leads to these advisories:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Keep in mind! Snow's reflective quality can nearly 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
Lachine, MI
- Average high temperature in December: 31.1°F
The warmest month (with the highest average high temperature) is July (75.6°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in December: 24.3°F
The month with the highest average low temperature is July (59°F).
The coldest months (with the lowest average low temperature) are January and February (17.1°F).
Average pressure in December
Lachine, MI
- Average pressure in December: 30.03"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Lachine, MI
- Average wind speed in December: 9.9mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is July (7mph).
Average humidity in December
Lachine, MI
- Average humidity in December: 83%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is May (72%).
Average rainfall in December
Lachine, MI
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is May (2.13").
The driest month (with the least rainfall) is February (0.87").
Average rainfall days in December
Lachine, MI
- Average rainfall days in December: 6 days
The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in December
Lachine, MI
- Average snowfall in December: 2.8"
The month with the highest snowfall is January (5.63").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Lachine, MI
- Average snowfall days in December: 16.4 days
The month with the highest number of snowfall days is January (19 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Lachine, MI
- Average daylight in December: 8h and 48min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 2h 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: 1h and 54min).
Average sunshine days in December
Lachine, MI
- Average sunshine days in December: 12.7 days
The month with the most sunshine days is May (16.1 days).
The month with the least sunshine days is January (11.3 days).
Average UV index in December
Lachine, MI
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Lachine, MI
- Average cloud cover in December: 74
The month with the most cloud cover is January (Cloud cover 79).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in December
Lachine, MI
- 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).





