December weather forecastHarbor Hills, OH
December
Weather in December
December, the first month of the winter in Harbor Hills, is still a cold month, with temperature in the range of an average high of 39.4°F (4.1°C) and an average low of 28.8°F (-1.8°C).Temperature
December's arrival coincides with a drop in the average high-temperature, decreasing from November's frosty 49.3°F (9.6°C) to a wintry 39.4°F (4.1°C). In Harbor Hills, December's nights observe an average temperature dip to a freezing cold 28.8°F (-1.8°C).Humidity
In December, the average relative humidity is 82%.Rainfall
The month with the least rainfall is December, when the rain falls for 7.3 days and typically collects 0.79" (20mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in Harbor Hills. In Harbor Hills, in December, snow falls for 5.9 days, with typically accumulated 0.55" (14mm) of snow. In Harbor Hills, during the entire year, snow falls for 28.3 days and aggregates up to 2.52" (64mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:32 am and sunset at 5:05 pm. On the last day of the month, sunrise is at 7:51 am and sunset at 5:14 pm EST.
Sunshine
The average sunshine in December is 3.7h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: A daily maximum UV index of 1 in December translates into the following instructions:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Harbor Hills, OH
- Average high temperature in December: 39.4°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in December: 28.8°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in December
Harbor Hills, OH
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Harbor Hills, OH
- Average wind speed in December: 8.5mph
The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest months (with the lowest average wind speed) are July and August (5.4mph).
Average humidity in December
Harbor Hills, OH
- Average humidity in December: 82%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is November (76%).
Average rainfall in December
Harbor Hills, OH
- Average rainfall in December: 0.79"
The wettest month (with the highest rainfall) is May (1.61").
The driest month (with the least rainfall) is December (0.79").
Average rainfall days in December
Harbor Hills, OH
- Average rainfall days in December: 7.3 days
The month with the highest number of rainy days is May (16.6 days).
The months with the least rainy days are January and February (6.8 days).
Average snowfall in December
Harbor Hills, OH
- Average snowfall in December: 0.55"
The month with the highest snowfall is January (0.75").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Harbor Hills, OH
- Average snowfall days in December: 5.9 days
The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Harbor Hills, OH
- Average daylight in December: 9h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 3h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in December
Harbor Hills, OH
- Average sunshine days in December: 19.3 days
The month with the most sunshine days is November (20.8 days).
The months with the least sunshine days are May and July (11.3 days).
Average UV index in December
Harbor Hills, 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
Harbor Hills, OH
- Average cloud cover in December: 61
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Harbor Hills, OH
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are January, May, July, August and September (5mi).
