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 onset of December introduces a moderate change in Cortland's weather, with average high-temperatures falling from November's chilly 47.1°F (8.4°C) to a cold 37.6°F (3.1°C). During December, the average low-temperature in Cortland is a freezing cold 26.8°F (-2.9°C).Humidity
In December, the average relative humidity in Cortland is 86%.Rainfall
In December, the rain falls for 11.8 days. Throughout December, 2.6" (66mm) of precipitation is accumulated. Throughout the year, there are 177.5 rainfall days, and 32.48" (825mm) of precipitation is accumulated.Snowfall
Months with snowfall in Cortland are January through May, October through December. In Cortland, in December, snow falls for 15.9 days, with typically accumulated 6.5" (165mm) of snow. In Cortland, during the entire year, snow falls for 77.8 days and aggregates up to 33.11" (841mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:30 am and sunset at 4:54 pm. On the last day of December, sunrise is at 7:48 am and sunset at 5:03 pm EST.
Sunshine
The average sunshine in December in Cortland is 3h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 1 during December leads to these instructions:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Frequently asked questions
Is December cold in Cortland?
What is the average humidity in December in Cortland?
How much does it rain in Cortland in December?
How many days does it snow in December in Cortland?
What is the month with the shortest days in Cortland?
How many hours of daylight does Cortland have in December?
What time are sunrise and sunset in December in Cortland?
How many hours of sunshine does Cortland have in December?
What is the month with the lowest UV index in Cortland?
What is the UV index intensity in December in Cortland?
Average temperature in December
Cortland, OH
- Average high temperature in December: 37.6°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (30.9°F).
- Average low temperature in December: 26.8°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in December
Cortland, OH
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Cortland, OH
- Average wind speed in December: 7.5mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is July (5mph).
Average humidity in December
Cortland, OH
- Average humidity in December: 86%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are July and August (77%).
Average rainfall in December
Cortland, OH
- Average rainfall in December: 2.6"
The wettest month (with the highest rainfall) is June (3.39").
The driest month (with the least rainfall) is September (2.09").
Average rainfall days in December
Cortland, OH
- Average rainfall days in December: 11.8 days
The month with the highest number of rainy days is May (19.8 days).
The month with the least rainy days is January (8.2 days).
Average snowfall in December
Cortland, OH
- Average snowfall in December: 6.5"
The month with the highest snowfall is January (8.9").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Cortland, OH
- Average snowfall days in December: 15.9 days
The month with the highest number of snowfall days is January (19.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Cortland, 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 0min
The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).
Average sunshine days in December
Cortland, OH
- Average sunshine days in December: 8.2 days
The month with the most sunshine days is September (12.7 days).
The month with the least sunshine days is February (6 days).
Average UV index in December
Cortland, 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
Cortland, OH
- Average cloud cover in December: 69
The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Cortland, OH
- Average visibility in December: 4mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February and December (4mi).
Cortland, Ohio, USA
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