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
During the transition into December, Martindale observes a decrease in the average high-temperature, falling from a fresh 50.5°F (10.3°C) in November to a cold 41.5°F (5.3°C). Martindale records an average low-temperature of 30°F (-1.1°C) throughout the month of December.Humidity
The average relative humidity in December is 80%.Rainfall
In December, the rain falls for 11.6 days. Throughout December, 2.83" (72mm) of precipitation is accumulated. In Martindale, during the entire year, the rain falls for 166.2 days and collects up to 33.46" (850mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Martindale, Pennsylvania, during December, snow falls for 4.6 days and regularly aggregates up to 1.97" (50mm) of snow. In Martindale, Pennsylvania, during the entire year, snow falls for 27.2 days and aggregates up to 14.45" (367mm) of snow.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:08 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:48 pm EST.
Sunshine
In Martindale, Pennsylvania, the average sunshine in December is 4.8h.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 low health risk from unsafe exposure to UV radiation for average individuals.Note: A daily maximum UV index of 2 in December translates into the following instructions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold during December?
What is the average humidity in December?
How much 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?
What time are sunrise and sunset in December?
How long on average sun shines in December in Martindale?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Martindale, PA
- Average high temperature in December: 41.5°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in December: 30°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (23°F).
Average pressure in December
Martindale, 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 (29.94"Hg).
Average wind speed in December
Martindale, PA
- Average wind speed in December: 8.3mph
The windiest months (with the highest average wind speed) are January, February and March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
Martindale, PA
- Average humidity in December: 80%
The months with the highest relative humidity are February, May and October (81%).
The month with the lowest relative humidity is April (76%).
Average rainfall in December
Martindale, PA
- Average rainfall in December: 2.83"
The wettest month (with the highest rainfall) is August (3.58").
The driest month (with the least rainfall) is September (2.28").
Average rainfall days in December
Martindale, PA
- Average rainfall days in December: 11.6 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is January (9.5 days).
Average snowfall in December
Martindale, PA
- Average snowfall in December: 1.97"
The month with the highest snowfall is March (4.45").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Martindale, PA
- Average snowfall days in December: 4.6 days
The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Martindale, 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 24min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).
Average sunshine days in December
Martindale, PA
- Average sunshine days in December: 15.6 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is May (10.5 days).
Average UV index in December
Martindale, PA
- Average UV index in December: 2
The months with the highest UV index are May, 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
Martindale, PA
- Average cloud cover in December: 49
The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in December
Martindale, PA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, November and December (6mi).
The months with the lowest visibility are May, August, September and October (5mi).
Martindale, Pennsylvania, USA
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