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
Pori's progression into December includes a drop in the average high-temperature, from an icy 37.8°F (3.2°C) in November to a subzero cold 27.5°F (-2.5°C). A consistent nighttime average temperature of 21°F (-6.1°C) is maintained during December.Humidity
In December, the average relative humidity is 85%.Rainfall
In Pori, in December, it is raining for 6.1 days, with typically 1.81" (46mm) of accumulated precipitation. In Pori, during the entire year, the rain falls for 122.6 days and collects up to 22.56" (573mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. December is the month with the most snowfall. Snow falls for 20.5 days and accumulates 6.65" (169mm) of snow.Daylight
The month with the shortest days is December, with an average of 8h and 36min of daylight.On the first day of the month, sunrise is at 8:20 am and sunset at 5:09 pm. On the last day of December, sunrise is at 8:40 am and sunset at 5:18 pm EST.
Sunshine
In December, the average sunshine is 2h.UV index
The months with the lowest UV index are January, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 1 during December leads to these advisories:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How many days does it rain in December?
What is the snowiest month in Pori?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Pori, MI
- Average high temperature in December: 27.5°F
The warmest month (with the highest average high temperature) is August (69.4°F).
The month with the lowest average high temperature is January (22.3°F).
- Average low temperature in December: 21°F
The month with the highest average low temperature is August (58.1°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in December
Pori, MI
- Average pressure in December: 30.05"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Pori, MI
- Average wind speed in December: 12.5mph
The windiest month (with the highest average wind speed) is January (12.6mph).
The calmest month (with the lowest average wind speed) is June (7.6mph).
Average humidity in December
Pori, MI
- Average humidity in December: 85%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is May (75%).
Average rainfall in December
Pori, MI
- Average rainfall in December: 1.81"
The wettest months (with the highest rainfall) are April, June, August and October (2.28").
The driest month (with the least rainfall) is February (1.22").
Average rainfall days in December
Pori, MI
- Average rainfall days in December: 6.1 days
The month with the highest number of rainy days is October (14.6 days).
The month with the least rainy days is February (2.5 days).
Average snowfall in December
Pori, MI
- Average snowfall in December: 6.65"
The month with the highest snowfall is December (6.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Pori, MI
- Average snowfall days in December: 20.5 days
The month with the highest number of snowfall days is January (22.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Pori, MI
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in December: 2h and 0min
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 36min).
Average sunshine days in December
Pori, MI
- Average sunshine days in December: 6.5 days
The month with the most sunshine days is July (15.5 days).
The month with the least sunshine days is January (5.6 days).
Average UV index in December
Pori, MI
- Average UV index in December: 1
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Pori, MI
- Average cloud cover in December: 80
The month with the most cloud cover is January (Cloud cover 84).
The months with the least cloud cover are July and August (Cloud cover 30).
Average visibility in December
Pori, MI
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, November and December (5mi).
Pori, Michigan, USA
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