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 shows a mild decline in the average high-temperature, falling from November's fresh 50.9°F (10.5°C) to a cold 41°F (5°C). During the nights in December, Northbrook experiences a consistent average temperature of 30.2°F (-1°C).Humidity
The most humid month is December, with an average relative humidity of 81%.Rainfall
In Northbrook, in December, during 8.8 rainfall days, 0.98" (25mm) of precipitation is typically accumulated. Throughout the year, there are 121.7 rainfall days, and 12.4" (315mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall in Northbrook. In Northbrook, during December, snow falls for 5.5 days and regularly aggregates up to 0.67" (17mm) of snow. In Northbrook, during the entire year, snow falls for 23.7 days and aggregates up to 3.98" (101mm) of snow.Daylight
The month with the shortest days in Northbrook, Ohio, is December, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 7:39 am and sunset at 5:15 pm. On the last day of December, sunrise is at 7:57 am and sunset at 5:25 pm EST.
Sunshine
The average sunshine in December is 4.2h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: The daily maximum UV index of 1 in December interprets into the following advice:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold in Northbrook during December?
What is the most humid month in Northbrook?
What is the average humidity in December in Northbrook?
How many days does it rain in December in Northbrook?
How many days does it snow in December in Northbrook?
What is the month with the shortest days in Northbrook?
How many hours of daylight does Northbrook have in December?
What time are sunrise and sunset in December in Northbrook?
How many hours of sunshine does Northbrook have in December?
What is the month with the lowest UV index in Northbrook?
What is the UV index reading in December in Northbrook?
Average temperature in December
Northbrook, OH
- Average high temperature in December: 41°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in December: 30.2°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).
Average pressure in December
Northbrook, OH
- Average pressure in December: 30.13"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Northbrook, OH
- Average wind speed in December: 8.1mph
The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in December
Northbrook, OH
- Average humidity in December: 81%
The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are August, September and October (74%).
Average rainfall in December
Northbrook, OH
- Average rainfall in December: 0.98"
The wettest month (with the highest rainfall) is May (1.42").
The driest month (with the least rainfall) is September (0.63").
Average rainfall days in December
Northbrook, OH
- Average rainfall days in December: 8.8 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is November (6.5 days).
Average snowfall in December
Northbrook, OH
- Average snowfall in December: 0.67"
The month with the highest snowfall is January (0.94").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Northbrook, OH
- Average snowfall days in December: 5.5 days
The month with the highest number of snowfall days is February (6.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Northbrook, OH
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in December
Northbrook, OH
- Average sunshine days in December: 17.7 days
The month with the most sunshine days is November (20.8 days).
The month with the least sunshine days is June (14 days).
Average UV index in December
Northbrook, OH
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Northbrook, OH
- Average cloud cover in December: 57
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in December
Northbrook, OH
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Northbrook, Ohio, USA
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