2025 Compare Climate & Weather:
Baltimore, MD vs Palo Alto, CA

Highlights

On average, there are 261 sunny days per year in Palo Alto. Baltimore averages 213 sunny days per year. The US average is 205 sunny days.

Palo Alto, California gets 17.3 inches of rain, on average, per year. Baltimore, Maryland gets 42.3 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Palo Alto averages 0 inches of snow per year. Baltimore averages 18.5 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

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

Baltimore, Maryland
Summer High: the July high is around 88.1 degrees
Winter Low: the January low is 27.4
Rain: averages 42.3 inches of rain a year
Snow: averages 18.5 inches of snow a year

BestPlaces Comfort Index

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

The annual BestPlaces Comfort Index for Baltimore is 7.3 (10=best), which means it is more comfortable than most places in Maryland.

Today's Weather - Baltimore, MD

66°F

Today's Weather - Palo Alto, CA

65°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Baltimore / Palo Alto

July is the hottest month for Baltimore with an average high temperature of 88.1°, which ranks it as warmer than most places in Maryland. In Baltimore, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Baltimore are September, May and June.

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.

January has the coldest nighttime temperatures for Baltimore with an average of 27.4°. This is warmer than most places in Maryland.

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

In Baltimore, there are 34.2 days annually when the high temperature is over 90°, which is one of the hottest places in Maryland.

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 Baltimore, there are 73.6 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Maryland.

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 Baltimore, there are 0.2 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Maryland.

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.

September is the wettest month in Baltimore with 4.0 inches of rain, and the driest month is February with 2.9 inches. The wettest season is Summer with 26% of yearly precipitation and 22% occurs in Spring, which is the driest season. The annual rainfall of 42.3 inches in Baltimore means that it is drier than most places in Maryland.


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.

May is the rainiest month in Baltimore with 11.1 days of rain, and October is the driest month with only 8.2 rainy days. There are 113.6 rainy days annually in Baltimore, which is about average compared to other places in Maryland. 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.

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.

An annual snowfall of 18.5 inches in Baltimore means that it is snowier than most places in Maryland.

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

January is the snowiest month in Baltimore with 7.0 inches of snow, and 5 months of the year have significant snowfall.

Any measurable snowfall is a rare occurance in Palo Alto.