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
A decrease in the average high-temperature is observed during December, shifting from a fresh 50.9°F (10.5°C) in November to a wintry 40.8°F (4.9°C). The nights of December anticipate an average low-temperature of 29.5°F (-1.4°C).Humidity
The months with the highest humidity are January, February and December, with an average relative humidity of 81%.Rainfall
In Hamilton, in December, during 10.5 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. In Hamilton, during the entire year, the rain falls for 147.8 days and collects up to 24.33" (618mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Hamilton, in December, during 4.9 snowfall days, 1.22" (31mm) of snow is typically accumulated. In Hamilton, during the entire year, snow falls for 25 days and aggregates up to 6.57" (167mm) of snow.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year in Hamilton, Ohio.On the first day of the month, sunrise is at 7:39 am and sunset at 5:15 pm. On the last day of December, sunrise is at 7:58 am and sunset at 5:24 pm EST.
Sunshine
The average sunshine in December is 4.2h.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 health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 1 during December leads to these instructions:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the most humid month?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Hamilton, OH
- Average high temperature in December: 40.8°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in December: 29.5°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure in December
Hamilton, OH
- Average pressure in December: 30.13"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Hamilton, OH
- Average wind speed in December: 8.3mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in December
Hamilton, OH
- Average humidity in December: 81%
The months with the highest relative humidity are January, February and December (81%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Hamilton, OH
- Average rainfall in December: 1.93"
The wettest month (with the highest rainfall) is May (2.99").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in December
Hamilton, OH
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in December
Hamilton, OH
- Average snowfall in December: 1.22"
The months with the highest snowfall are February and March (1.81").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Hamilton, OH
- Average snowfall days in December: 4.9 days
The month with the highest number of snowfall days is January (7.1 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
Hamilton, OH
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 4h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in December
Hamilton, OH
- Average sunshine days in December: 16 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in December
Hamilton, OH
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Hamilton, OH
- Average cloud cover in December: 57
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in December
Hamilton, OH
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Hamilton, Ohio, USA
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