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
Northampton's progression into December involves a drop in the average high-temperature, receding from a frosty 49.1°F (9.5°C) in November to a wintry 40.1°F (4.5°C). An average temperature of 28.9°F (-1.7°C) marks the nights in December.Humidity
The average relative humidity in December is 80%.Rainfall
In Northampton, during December, the rain falls for 12.1 days and regularly aggregates up to 2.87" (73mm) of precipitation. Throughout the year, in Northampton, there are 162.5 rainfall days, and 31.69" (805mm) of precipitation is accumulated.Snowfall
Months with snowfall in Northampton, Pennsylvania, are January through May, October through December. In December, it is snowing for 5.5 days. Throughout December, 2.95" (75mm) of snow is accumulated. In Northampton, during the entire year, snow falls for 32.3 days and aggregates up to 17.24" (438mm) of snow.Daylight
December has the shortest days of the year in Northampton, Pennsylvania, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:07 am and sunset at 4:35 pm. On the last day of December, in Northampton, sunrise is at 7:25 am and sunset at 4:44 pm EST.
Sunshine
The average sunshine in December in Northampton is 4.7h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum high daily UV index of 2 during December translates into the following directions:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Enhance your sun protection with tightly woven, yet airy clothing. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Frequently asked questions
How cold is December in Northampton?
What is the average humidity in December in Northampton?
How many days does it rain in December in Northampton?
How much does it snow in Northampton in December?
What is the month with the shortest days in Northampton?
How many hours of daylight does Northampton have in December?
When is the sunrise / sunset in December in Northampton?
How long on average sun shines in December in Northampton?
When is the lowest UV index in Northampton?
What is the UV index reading in December in Northampton?
Average temperature in December
Northampton, PA
- Average high temperature in December: 40.1°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 (33.8°F).
- Average low temperature in December: 28.9°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 (21.6°F).
Average pressure in December
Northampton, PA
- 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
Northampton, PA
- Average wind speed in December: 7.6mph
The windiest months (with the highest average wind speed) are January and March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
Northampton, PA
- Average humidity in December: 80%
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and July (76%).
Average rainfall in December
Northampton, PA
- Average rainfall in December: 2.87"
The wettest month (with the highest rainfall) is July (3.19").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in December
Northampton, PA
- Average rainfall days in December: 12.1 days
The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (9.9 days).
Average snowfall in December
Northampton, PA
- Average snowfall in December: 2.95"
The month with the highest snowfall is March (4.88").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Northampton, PA
- Average snowfall days in December: 5.5 days
The month with the highest number of snowfall days is February (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Northampton, PA
- 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 18min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in December
Northampton, PA
- Average sunshine days in December: 15.7 days
The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is February (11.7 days).
Average UV index in December
Northampton, PA
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Northampton, PA
- Average cloud cover in December: 51
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in December
Northampton, PA
- Average visibility in December: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Northampton, Pennsylvania, USA
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