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 start of December comes with a reduction in the average high-temperature, receding from a chilly 48.6°F (9.2°C) in November to an icy 38.3°F (3.5°C). During the month of December, the temperature generally drops to a low average of 28.2°F (-2.1°C).Humidity
January and December, with an average relative humidity of 83%, are the most humid months.Rainfall
In Troy, in December, it is raining for 9.2 days, with typically 1.57" (40mm) of accumulated precipitation. Throughout the year, there are 149.8 rainfall days, and 22.95" (583mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 7.5 days. Throughout December, 1.81" (46mm) of snow is accumulated. In Troy, during the entire year, snow falls for 34.4 days and aggregates up to 8.74" (222mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:40 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 7:58 am and sunset at 5:21 pm EST.
Sunshine
In December, the average sunshine is 3.9h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: In December, the maximum UV index of 1 translates into these guidelines:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in December?
What are the most humid months?
What is the average humidity in December?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Troy have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Troy have in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Troy, OH
- Average high temperature in December: 38.3°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (32.4°F).
- Average low temperature in December: 28.2°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in December
Troy, OH
- Average pressure in December: 30.12"Hg
The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Troy, OH
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in December
Troy, OH
- Average humidity in December: 83%
The months with the highest relative humidity are January and December (83%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in December
Troy, OH
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is November (1.26").
Average rainfall days in December
Troy, OH
- Average rainfall days in December: 9.2 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (7 days).
Average snowfall in December
Troy, OH
- Average snowfall in December: 1.81"
The month with the highest snowfall is February (2.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Troy, OH
- Average snowfall days in December: 7.5 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Troy, OH
- Average daylight in December: 9h and 2min
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 5min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Troy, OH
- Average sunshine days in December: 15.8 days
The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is May (10.1 days).
Average UV index in December
Troy, 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
Troy, OH
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Troy, OH
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (6mi).
The month with the lowest visibility is September (5mi).
Troy, Ohio, USA
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