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
In December, the average high-temperature drops from a frosty 45.1°F (7.3°C) in November to a cold 34.3°F (1.3°C). In Rochester Hills, the average low-temperature is 25.9°F (-3.4°C).Humidity
The average relative humidity in December in Rochester Hills is 82%.Rainfall
February and December are months with the least rain when the rain falls for 8.8 days and typically aggregates up to 1.02" (26mm) of rain.Snowfall
Months with snowfall are January through May, October through December. In Rochester Hills, during December, snow falls for 13.9 days and regularly aggregates up to 2.4" (61mm) of snow. Throughout the year, there are 62.5 snowfall days, and 14.09" (358mm) of snow is accumulated.Daylight
With an average of 9h and 7min of daylight, December has the shortest days of the year in Rochester Hills.On the first day of the month, sunrise is at 7:42 am and sunset at 5:00 pm. On the last day of December, in Rochester Hills, sunrise is at 8:02 am and sunset at 5:08 pm EST.
Sunshine
In December, the average sunshine is 3.4h.UV index
The month with the lowest UV index in Rochester Hills is December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.Note: The daily maximum UV index of 1 in December interpret into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
FAQ
What is the temperature in December in Rochester Hills?
What is the average humidity in December in Rochester Hills?
What is the driest month in Rochester Hills?
How many days does it rain in December in Rochester Hills?
How much does it snow in Rochester Hills in December?
What is the month with the shortest days in Rochester Hills?
What is the average length of the day in December in Rochester Hills?
When is the sunrise / sunset in December in Rochester Hills?
How many hours of sunshine does Rochester Hills have in December?
When is the lowest UV index in Rochester Hills?
What is the UV index reading in December in Rochester Hills?
Average temperature in December
Rochester Hills, MI
- Average high temperature in December: 34.3°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 (28°F).
- Average low temperature in December: 25.9°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure in December
Rochester Hills, MI
- Average pressure in December: 30.07"Hg
The months with the highest atmospheric pressure are March and November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Rochester Hills, MI
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity in December
Rochester Hills, MI
- Average humidity in December: 82%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April, May, July and August (75%).
Average rainfall in December
Rochester Hills, MI
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is May (2.28").
The driest months (with the least rainfall) are February and December (1.02").
Average rainfall days in December
Rochester Hills, MI
- Average rainfall days in December: 8.8 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (6.4 days).
Average snowfall in December
Rochester Hills, MI
- Average snowfall in December: 2.4"
The month with the highest snowfall is February (4.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Rochester Hills, MI
- Average snowfall days in December: 13.9 days
The month with the highest number of snowfall days is January (15.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Rochester Hills, MI
- Average daylight in December: 9h and 7min
The month with the longest days is June (Average daylight: 15h and 16min).
The month with the shortest days is December (Average daylight: 9h and 7min).
- Average sunshine in December: 3h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in December
Rochester Hills, MI
- Average sunshine days in December: 12.3 days
The month with the most sunshine days is November (14.9 days).
The month with the least sunshine days is February (9.8 days).
Average UV index in December
Rochester Hills, MI
- Average UV index in December: 1
The months with the highest UV index are July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Rochester Hills, MI
- Average cloud cover in December: 64
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in December
Rochester Hills, MI
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
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