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2024 Compare Climate & Weather:
Palo Alto, CA vs Philadelphia, PA

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Highlights

On average, there are 207 sunny days per year in Philadelphia. Palo Alto averages 261 sunny days per year. The US average is 205 sunny days.

Philadelphia, Pennsylvania gets 47.2 inches of rain, on average, per year. Palo Alto, California gets 17.3 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Philadelphia averages 13.1 inches of snow per year. Palo Alto averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.


Weather Highlights

Philadelphia, Pennsylvania
Summer High:
the July high is around 87 degrees
Winter Low: the January low is 26
Rain: averages 47.2 inches of rain a year
Snow: averages 13.1 inches of snow a year

Palo Alto, California
Summer High:
the July high is around 79.8 degrees
Winter Low: the January low is 40.5
Rain: averages 17.3 inches of rain a year
Snow: averages 0 inches of snow a year


BESTPLACES COMFORT INDEX
Philadelphia

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

7.3 / 10
September, June and May are the most pleasant months in Philadelphia, while January and February are the least comfortable months.

Palo Alto

The annual BestPlaces Comfort Index for Palo Alto is 8.8 (10=best), which means it is more comfortable than most places in California.

8.8 / 10
August, July and September are the most pleasant months in Palo Alto, while January and December are the least comfortable months.


Today's Weather - Palo Alto, CA

4 PM PST

Sunny

80°F

DAYDESCRIPTIONHIGH / LOWWIND
This AfternoonSunny81° / 55°NNW 16 mph
ThursdaySunny86° / 57°N 3 to 14 mph
FridaySunny85° / 55°WNW 1 to 12 mph
SaturdaySunny82° / 54°NW 1 to 10 mph
SundaySunny78° / 51°WNW 5 to 12 mph
MondaySunny76° / 52°W 5 to 12 mph
TuesdaySunny78° / 53°WSW 5 to 12 mph

Today's Weather - Philadelphia, PA

4 PM PST

Partly Cloudy

81°F

DAYDESCRIPTIONHIGH / LOWWIND
TonightPartly Cloudy60° / 67°NW 5 to 15 mph
Thursday NightShowers And Thunderstorms52° / 57°E 5 to 10 mph
Friday NightRain Showers48° / 61°NE 5 to 10 mph
Saturday NightChance Rain Showers49° / 62°SE 10 mph
Sunday NightChance Rain Showers then Partly Cloudy47° / 72°W 5 to 10 mph
Monday NightSlight Chance Rain Showers54° / 74°SW 10 mph
Tuesday NightChance Rain Showers57° / 75°S 10 to 15 mph

Average Monthly High / Low (°F)
MonthPalo Alto, CAPhiladelphia, PA
January58° / 41°41° / 26°
February62° / 43°45° / 28°
March65° / 45°53° / 35°
April69° / 47°64° / 44°
May74° / 51°74° / 54°
June78° / 54°83° / 64°
July80° / 57°87° / 69°
August80° / 56°85° / 67°
September79° / 55°78° / 60°
October74° / 50°67° / 48°
November65° / 45°56° / 40°
December58° / 40°45° / 31°

Hot, Freezing, Rainy, Snowy Days: Palo Alto / Philadelphia
MonthHot DaysFreezing DaysRainy DaysSnowy Days
January0 / 03 / 2210 / 110 / 2
February0 / 01 / 1910 / 90 / 2
March0 / 00 / 1110 / 110 / 1
April0 / 00 / 25 / 120 / 0
May1 / 10 / 03 / 120 / 0
June3 / 60 / 01 / 100 / 0
July2 / 100 / 00 / 100 / 0
August3 / 70 / 00 / 90 / 0
September3 / 10 / 01 / 90 / 0
October1 / 00 / 13 / 90 / 0
November0 / 00 / 68 / 90 / 0
December0 / 03 / 1710 / 100 / 1
July is the hottest month for Palo Alto with an average high temperature of 79.8°, which ranks it as cooler than most places in California. In Palo Alto, there are 6 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Palo Alto are June, September and August.

July is the hottest month for Philadelphia with an average high temperature of 87.0°, which ranks it as one of the hottest places in Pennsylvania. In Philadelphia, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Philadelphia are September, May and June.


December has the coldest nighttime temperatures for Palo Alto with an average of 40.2°. This is warmer than most places in California.

January has the coldest nighttime temperatures for Philadelphia with an average of 26.0°. This is one of the warmest places in Pennsylvania.



In Palo Alto, there are 13.0 days annually when the high temperature is over 90°, which is cooler than most places in California.

In Philadelphia, there are 25.2 days annually when the high temperature is over 90°, which is one of the hottest places in Pennsylvania.



In Palo Alto, there are 7.1 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In Philadelphia, there are 77.5 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Pennsylvania.



In Palo Alto, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in California.

In Philadelphia, there are 0.2 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Pennsylvania.



February is the wettest month in Palo Alto with 3.5 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 58% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 17.3 inches in Palo Alto means that it is about average compared to other places in California.


July is the wettest month in Philadelphia 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 22% occurs in Spring, which is the driest season. The annual rainfall of 47.2 inches in Philadelphia means that it is wetter than most places in Pennsylvania.


January is the rainiest month in Palo Alto with 10.2 days of rain, and July is the driest month with only 0.1 rainy days. There are 60.6 rainy days annually in Palo Alto, which is about average compared to other places in California. The rainiest season is Spring when it rains 50% of the time and the driest is Autumn with only a 2% chance of a rainy day.

April is the rainiest month in Philadelphia with 11.7 days of rain, and September is the driest month with only 8.5 rainy days. There are 118.9 rainy days annually in Philadelphia, which is less rainy than most places in Pennsylvania. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 22% chance of a rainy day.



There is rarely any recorded snowfall in Palo Alto, ranking it as one of the least snowy places in California.

An annual snowfall of 13.1 inches in Philadelphia means that it is one of the least snowy places in Pennsylvania.



Any measurable snowfall is a rare occurance in Palo Alto.

February is the snowiest month in Philadelphia with 4.8 inches of snow, and 4 months of the year have significant snowfall.


DID YOU KNOW?

Many people confuse Weather and Climate, but they are different. Weather refers to the conditions of the atmosphere over a short period of time, while Climate refers to the conditions of the atmosphere over a long period of time.

Weather, more specifically, refers to how the atmosphere behaves and its effects on life and human activities. Most people think of Weather in terms of what can be observed: temperature, humidity, precipitation, and cloudy/sunny conditions. Weather conditions constantly change on a minute-to-minute basis.

Climate is a record of the average weather conditions for a given place over a long period of time, often referred to as Climate Normals. A 30-year period of record is a common requirement to be considered a Climate Normal.


Reviews for Palo Alto    2 Reviews

Over 15 years ago

Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't  More

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Over 15 years ago

Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but  More

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Start Your Review of Palo Alto

Reviews for Philadelphia    2 Reviews

Over 15 years ago

Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't  More

   |    Reply

Over 15 years ago

Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but  More

   |    Reply

Start Your Review of Philadelphia

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ZIPS IN PALO ALTO, CALIFORNIA
94306, 94301, 94304
ZIPS IN PHILADELPHIA, PENNSYLVANIA
19120, 19111, 19124, 19143, 19134, 19149, 19104, 19148, 19140, 19145, 48 total

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