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 shift to December brings a decrease in the average high-temperature, falling from a chilly 47.3°F (8.5°C) in November to an icy 37.2°F (2.9°C). Greenwich records a consistent low-temperature of 27.5°F (-2.5°C) during December nights.Humidity
In December, the average relative humidity in Greenwich is 83%.Rainfall
In Greenwich, during December, the rain falls for 12.5 days and regularly aggregates up to 2.24" (57mm) of precipitation. Throughout the year, in Greenwich, there are 178.7 rainfall days, and 32.6" (828mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Greenwich, during December, snow falls for 13 days and regularly aggregates up to 4.02" (102mm) of snow. In Greenwich, Ohio, during the entire year, snow falls for 61.8 days and aggregates up to 20.16" (512mm) of snow.Daylight
December has the shortest days of the year in Greenwich, Ohio, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:36 am and sunset at 5:02 pm. On the last day of the month, sunrise is at 7:54 am and sunset at 5:11 pm EST.
Sunshine
The average sunshine in December is 3.5h.UV index
December is the month with the lowest UV index in Greenwich, Ohio, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In December, the average maximum UV index of 1 translates into the following recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Greenwich in December?
What is the average humidity in December in Greenwich?
How much does it rain in Greenwich in December?
How many days does it snow in December in Greenwich?
What is the month with the shortest days in Greenwich?
How many hours of daylight does Greenwich have in December?
What time are sunrise and sunset in December in Greenwich?
How long on average sun shines in December in Greenwich?
What is the month with the lowest UV index in Greenwich?
How high is the UV index in December in Greenwich?
Average temperature in December
Greenwich, OH
- Average high temperature in December: 37.2°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in December: 27.5°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).
Average pressure in December
Greenwich, OH
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Greenwich, OH
- Average wind speed in December: 10.1mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity in December
Greenwich, OH
- Average humidity in December: 83%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are October and November (77%).
Average rainfall in December
Greenwich, OH
- Average rainfall in December: 2.24"
The wettest month (with the highest rainfall) is June (3.54").
The driest month (with the least rainfall) is February (2.17").
Average rainfall days in December
Greenwich, OH
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is January (9.2 days).
Average snowfall in December
Greenwich, OH
- Average snowfall in December: 4.02"
The month with the highest snowfall is February (5.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Greenwich, OH
- Average snowfall days in December: 13 days
The month with the highest number of snowfall days is January (16.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Greenwich, OH
- Average daylight in December: 9h and 2min
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 18min).
- Average sunshine in December: 3h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in December
Greenwich, OH
- Average sunshine days in December: 10.2 days
The month with the most sunshine days is November (13 days).
The month with the least sunshine days is February (8.4 days).
Average UV index in December
Greenwich, 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
Greenwich, OH
- Average cloud cover in December: 64
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Greenwich, 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).
Greenwich, Ohio, USA
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