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
The beginning of December involves a decrease in the average high-temperature, transitioning from a chilly 46.2°F (7.9°C) in November to a cold 37°F (2.8°C). Throughout December, Harbor reports a steady low-temperature average of 29.8°F (-1.2°C), slightly lower than its daytime counterpart.Humidity
In December, the average relative humidity is 84%.Rainfall
In Harbor, in December, it is raining for 10.9 days, with typically 2.72" (69mm) of accumulated precipitation. In Harbor, during the entire year, the rain falls for 181 days and collects up to 36.34" (923mm) of precipitation.Snowfall
Months with snowfall in Harbor are January through May, October through December. In December, it is snowing for 15.4 days. Throughout December, 5.08" (129mm) of snow is accumulated. Throughout the year, there are 71.4 snowfall days, and 25.28" (642mm) of snow is accumulated.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:32 am and sunset at 4:53 pm. On the last day of December, in Harbor, sunrise is at 7:50 am and sunset at 5:02 pm EST.
Sunshine
In Harbor, the average sunshine in December is 2.9h.UV index
December is the month with the lowest UV index in Harbor, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the average person.Note: In December, a regular UV index of 1 translates into these guidelines:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Frequently asked questions
How cold is December in Harbor?
What is the average humidity in December in Harbor?
How many days does it rain in December in Harbor?
How many days does it snow in December in Harbor?
What is the month with the shortest days in Harbor?
How many hours of daylight does Harbor have in December?
What time are sunrise and sunset in December in Harbor?
How many hours of sunshine does Harbor have in December?
What is the month with the lowest UV index in Harbor?
How high is the UV index in December in Harbor?
Average temperature in December
Harbor, OH
- Average high temperature in December: 37°F
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in December: 29.8°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (21°F).
Average pressure in December
Harbor, OH
- Average pressure in December: 30.08"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
Harbor, OH
- Average wind speed in December: 11.3mph
The windiest month (with the highest average wind speed) is January (11.4mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).
Average humidity in December
Harbor, OH
- Average humidity in December: 84%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are July, August and September (78%).
Average rainfall in December
Harbor, OH
- Average rainfall in December: 2.72"
The wettest month (with the highest rainfall) is June (3.94").
The driest months (with the least rainfall) are February and November (2.4").
Average rainfall days in December
Harbor, OH
- Average rainfall days in December: 10.9 days
The month with the highest number of rainy days is August (18.8 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in December
Harbor, OH
- Average snowfall in December: 5.08"
The month with the highest snowfall is January (6.69").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Harbor, OH
- Average snowfall days in December: 15.4 days
The month with the highest number of snowfall days is January (18.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Harbor, OH
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 2h and 5min
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 30min).
Average sunshine days in December
Harbor, OH
- Average sunshine days in December: 6.7 days
The month with the most sunshine days is September (11 days).
The month with the least sunshine days is January (5.9 days).
Average UV index in December
Harbor, OH
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Harbor, OH
- Average cloud cover in December: 71
The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in December
Harbor, OH
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Harbor, Ohio, USA
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