December weather forecastWestlake, OH
December
Weather in December
December, the first month of the winter in Westlake, is also an icy month, with an average temperature varying between 29.8°F (-1.2°C) and 37.8°F (3.2°C).Temperature
As Westlake enters December, the average high-temperature decreases from the a chilly 47.3°F (8.5°C) of November to an icy 37.8°F (3.2°C). Westlake navigates through December with a barely noticeable decrease in temperature at night, stabilizing at a subzero cold 29.8°F (-1.2°C).Humidity
In December, the average relative humidity in Westlake is 81%.Rainfall
In Westlake, during December, the rain falls for 9.4 days and regularly aggregates up to 1.5" (38mm) of precipitation. Throughout the year, there are 161.8 rainfall days, and 24.96" (634mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In December, it is snowing for 12.1 days. Throughout December, 2.8" (71mm) of snow is accumulated. Throughout the year, in Westlake, there are 58.1 snowfall days, and 12.91" (328mm) of snow is accumulated.Daylight
December has the shortest days of the year in Westlake, with an average of 9h and 12min of daylight.On the first day of December in Westlake, Ohio, sunrise is at 7:35 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 7:53 am and sunset at 5:08 pm EST.
Sunshine
In December, the average sunshine in Westlake, Ohio, is 3.3h.UV index
The month with the lowest UV index in Westlake is December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index, 1 during December, leads to the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Westlake, OH
- Average high temperature in December: 37.8°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in December: 29.8°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in December
Westlake, OH
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Westlake, OH
- Average wind speed in December: 11.1mph
The windiest month (with the highest average wind speed) is January (11.4mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).
Average humidity in December
Westlake, OH
- Average humidity in December: 81%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are July, August, October and November (76%).
Average rainfall in December
Westlake, OH
- Average rainfall in December: 1.5"
The wettest month (with the highest rainfall) is June (3.15").
The driest month (with the least rainfall) is February (1.38").
Average rainfall days in December
Westlake, OH
- Average rainfall days in December: 9.4 days
The month with the highest number of rainy days is August (17.1 days).
The month with the least rainy days is January (7.5 days).
Average snowfall in December
Westlake, OH
- Average snowfall in December: 2.8"
The month with the highest snowfall is January (3.66").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Westlake, OH
- Average snowfall days in December: 12.1 days
The month with the highest number of snowfall days is January (15.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Westlake, OH
- Average daylight in December: 9h and 12min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 3h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in December
Westlake, OH
- Average sunshine days in December: 10.6 days
The month with the most sunshine days is July (12.8 days).
The month with the least sunshine days is February (8.7 days).
Average UV index in December
Westlake, OH
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Westlake, OH
- Average cloud cover in December: 66
The month with the most cloud cover is January (Cloud cover 72).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in December
Westlake, OH
- 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).
