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 beginning of December marks a decrease in the average high-temperature, transitioning from a frosty 45.7°F (7.6°C) in November to a wintry 36.1°F (2.3°C). During the month of December, Hadley anticipates a mean low-temperature of 25.9°F (-3.4°C).Humidity
The average relative humidity in December in Hadley, Pennsylvania, is 88%.Rainfall
In Hadley, in December, it is raining for 11.3 days, with typically 2.87" (73mm) of accumulated precipitation. In Hadley, Pennsylvania, during the entire year, the rain falls for 174.1 days and collects up to 34.65" (880mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Hadley, Pennsylvania, in December, snow falls for 17.3 days, with typically accumulated 7.87" (200mm) of snow. Throughout the year, in Hadley, there are 83.8 snowfall days, and 39.13" (994mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:28 am and sunset at 4:52 pm. On the last day of December, sunrise is at 7:46 am and sunset at 5:01 pm EST.
Sunshine
In Hadley, the average sunshine in December is 2.6h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 1 in December translates into these instructions:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Frequently asked questions
How cold is it in Hadley in December?
What is the average humidity in December in Hadley?
How many days does it rain in December in Hadley?
How much does it snow in Hadley in December?
What is the month with the shortest days in Hadley?
How many hours of daylight does Hadley have in December?
When are sunrise and sunset in December in Hadley?
How long on average sun shines in December in Hadley?
When is the lowest UV index in Hadley?
What is the UV index reading in December in Hadley?
Average temperature in December
Hadley, PA
- Average high temperature in December: 36.1°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 (30.2°F).
- Average low temperature in December: 25.9°F
The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in December
Hadley, 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
Hadley, PA
- Average wind speed in December: 7.7mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in December
Hadley, PA
- Average humidity in December: 88%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (79%).
Average rainfall in December
Hadley, PA
- Average rainfall in December: 2.87"
The wettest month (with the highest rainfall) is April (3.58").
The driest month (with the least rainfall) is September (2.28").
Average rainfall days in December
Hadley, PA
- Average rainfall days in December: 11.3 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (7.7 days).
Average snowfall in December
Hadley, PA
- Average snowfall in December: 7.87"
The month with the highest snowfall is January (10.31").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Hadley, PA
- Average snowfall days in December: 17.3 days
The month with the highest number of snowfall days is January (21.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Hadley, PA
- Average daylight in December: 9h and 1min
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 12min).
- Average sunshine in December: 2h and 4min
The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days in December
Hadley, PA
- Average sunshine days in December: 7 days
The month with the most sunshine days is September (12.8 days).
The month with the least sunshine days is February (5.8 days).
Average UV index in December
Hadley, 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
Hadley, PA
- Average cloud cover in December: 73
The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in December
Hadley, PA
- Average visibility in December: 4mi
The months with the highest visibility are March, April, May, June, July, August, October and November (5mi).
The months with the lowest visibility are January, February, September and December (4mi).
Hadley, Pennsylvania, USA
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