Zip 19121 (Philadelphia, PA) Climate

In 1921, Philadelphia, PA had a humid continental climate typical of the Mid-Atlantic region. Winters were cold with average temperatures in December and January reaching around 32 degrees Fahrenheit. Summers were hot and humid with temperatures reaching highs of 89 degrees Fahrenheit in July and August. Precipitation was abundant year round with an average of 43 inches throughout the year. The area typically received snowfall during the winter months, averaging around 24 inches annually.

Philadelphia (zip 19121), Pennsylvania gets 48 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Philadelphia (zip 19121) averages 16 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 205 sunny days per year in Philadelphia (zip 19121). The US average is 205 sunny days.

Philadelphia (zip 19121) gets some kind of precipitation, on average, 117 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 87 degrees
Winter Low: the January low is 27
Rain: averages 48 inches of rain a year
Snow: averages 16 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the 19121 zip code is 7.3 (10=best), which means it is one of the most pleasant places in Pennsylvania.

8.1 Summer - 5.8 Winter

September, June and May are the most pleasant months in the 19121 zip code, while January and February are the least comfortable months.

Climate	Philadelphia, Pennsylvania	United States
	Unlock	38.1 in.
	16.3 in.	Unlock
	Unlock	106.2 days
	205 days	Unlock
	86.9°	85.8°
	Unlock	21.7°
	7.3	Unlock
	Unlock	4.3
	98 ft.	Unlock

Climate

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

July is the hottest month for the 19121 zip code with an average high temperature of 86.9°, which ranks it as one of the hottest places in Pennsylvania. In the 19121 zip code, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for the 19121 zip code are September, May and June.

In the 19121 zip code, there are 24.7 days annually when the high temperature is over 90°, which is one of the hottest places in Pennsylvania.

January has the coldest nighttime temperatures for the 19121 zip code with an average of 26.9°. This is one of the warmest places in Pennsylvania.

In the 19121 zip code, there are 70.9 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Pennsylvania.

In the 19121 zip code, there are 0.1 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Pennsylvania.

The humidity is usually comfortable in the 19121 zip code but some summer months can be sticky or muggy. July is the most humid month, though humidity is low for most of the year. The most humid months are July, August and June.

July is the wettest month in the 19121 zip code with 4.7 inches of rain, and the driest month is February with 2.9 inches. The wettest season is Autumn with 28% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 48.1 inches in the 19121 zip code means that it is one of the wettest places in Pennsylvania.

April is the rainiest month in the 19121 zip code with 11.6 days of rain, and September is the driest month with only 8.3 rainy days. There are 116.8 rainy days annually in the 19121 zip code, which is less rainy than most places in Pennsylvania. The rainiest season is Summer when it rains 29% of the time and the driest is Winter with only a 22% chance of a rainy day.

An annual snowfall of 16.3 inches in the 19121 zip code means that it is one of the least snowy places in Pennsylvania. February is the snowiest month in the 19121 zip code with 5.9 inches of snow, and 4 months of the year have significant snowfall.

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