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
December's arrival coincides with a drop in the average high-temperature, decreasing from November's frosty 46.2°F (7.9°C) to an icy 36.7°F (2.6°C). Throughout December, a steady low-temperature average of 25.7°F (-3.5°C) is noted.Humidity
In Hamilton, Pennsylvania, the average relative humidity in December is 86%.Rainfall
In Hamilton, in December, it is raining for 10.5 days, with typically 1.73" (44mm) of accumulated precipitation. In Hamilton, during the entire year, the rain falls for 151.9 days and collects up to 22.13" (562mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Hamilton, during December, snow falls for 14.6 days and regularly aggregates up to 4.21" (107mm) of snow. In Hamilton, during the entire year, snow falls for 71 days and aggregates up to 22.32" (567mm) 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 December, sunrise is at 7:22 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 4:58 pm EST.
Sunshine
In December, the average sunshine is 2.6h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, a regular UV index of 1 translates into these guidelines:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December in Hamilton?
How many hours of sunshine does Hamilton have in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Hamilton, PA
- Average high temperature in December: 36.7°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.4°F).
- Average low temperature in December: 25.7°F
The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in December
Hamilton, PA
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Hamilton, PA
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in December
Hamilton, PA
- Average humidity in December: 86%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are June, July and August (78%).
Average rainfall in December
Hamilton, PA
- Average rainfall in December: 1.73"
The wettest month (with the highest rainfall) is April (2.48").
The driest month (with the least rainfall) is November (1.26").
Average rainfall days in December
Hamilton, PA
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in December
Hamilton, PA
- Average snowfall in December: 4.21"
The month with the highest snowfall is January (5.63").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Hamilton, PA
- Average snowfall days in December: 14.6 days
The month with the highest number of snowfall days is January (18.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Hamilton, PA
- 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: 2h and 4min
The months with the most sunshine are July and August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).
Average sunshine days in December
Hamilton, PA
- Average sunshine days in December: 9.2 days
The month with the most sunshine days is September (15.3 days).
The month with the least sunshine days is February (7.8 days).
Average UV index in December
Hamilton, PA
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Hamilton, PA
- Average cloud cover in December: 72
The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in December
Hamilton, PA
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).
Hamilton, Pennsylvania, USA
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