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 indicates a shift in the average high-temperature, from November's frosty 47.5°F (8.6°C) to a wintry 37.8°F (3.2°C). Throughout December, Hemlock Farms witnesses a nighttime temperature average of 25.9°F (-3.4°C).Humidity
February and December, with an average relative humidity of 83%, are the most humid months.Rainfall
In Hemlock Farms, in December, during 11.1 rainfall days, 1.38" (35mm) of precipitation is typically accumulated. In Hemlock Farms, during the entire year, the rain falls for 147.7 days and collects up to 17.64" (448mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Hemlock Farms, during December, snow falls for 6.7 days and regularly aggregates up to 1.57" (40mm) of snow. Throughout the year, there are 35.4 snowfall days, and 8.43" (214mm) of snow is accumulated.Daylight
The month with the shortest days is December, 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 4:31 pm. On the last day of December, sunrise is at 7:25 am and sunset at 4:41 pm EST.
Sunshine
The average sunshine in December is 4.6h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The daily maximum UV index of 1 in December interprets into the following advice:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold during December?
What are the most humid months?
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 are sunrise and sunset in December?
How many hours of sunshine does Hemlock Farms have in December?
When is the lowest UV index in Hemlock Farms?
How high is the UV index in December?
Average temperature in December
Hemlock Farms, PA
- Average high temperature in December: 37.8°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (31.8°F).
- Average low temperature in December: 25.9°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in December
Hemlock Farms, PA
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Hemlock Farms, PA
- Average wind speed in December: 7.1mph
The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in December
Hemlock Farms, PA
- Average humidity in December: 83%
The months with the highest relative humidity are February and December (83%).
The months with the lowest relative humidity are April and July (77%).
Average rainfall in December
Hemlock Farms, PA
- Average rainfall in December: 1.38"
The wettest month (with the highest rainfall) is May (1.97").
The driest month (with the least rainfall) is September (0.94").
Average rainfall days in December
Hemlock Farms, PA
- Average rainfall days in December: 11.1 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in December
Hemlock Farms, PA
- Average snowfall in December: 1.57"
The month with the highest snowfall is January (2.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Hemlock Farms, PA
- Average snowfall days in December: 6.7 days
The month with the highest number of snowfall days is January (10.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Hemlock Farms, 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: 4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in December
Hemlock Farms, PA
- Average sunshine days in December: 15 days
The month with the most sunshine days is September (17.4 days).
The month with the least sunshine days is April (11.8 days).
Average UV index in December
Hemlock Farms, PA
- Average UV index in December: 1
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Hemlock Farms, PA
- Average cloud cover in December: 52
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in December
Hemlock Farms, PA
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Hemlock Farms, Pennsylvania, USA
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