2025 Compare Climate & Weather:
San Francisco, CA vs Katy, TX

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Highlights

On average, there are 208 sunny days per year in Katy. San Francisco averages 259 sunny days per year. The US average is 205 sunny days.

Katy, Texas gets 48 inches of rain, on average, per year. San Francisco, California gets 24.6 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Katy averages 0 inches of snow per year. San Francisco averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Katy, Texas
Summer High: the July high is around 93.9 degrees
Winter Low: the January low is 42.5
Rain: averages 48 inches of rain a year
Snow: averages 0 inches of snow a year

San Francisco, California
Summer High: the July high is around 67.2 degrees
Winter Low: the January low is 45.5
Rain: averages 24.6 inches of rain a year
Snow: averages 0 inches of snow a year

BestPlaces Comfort Index

Katy

The annual BestPlaces Comfort Index for Katy is 6.7 (10=best), which means it is less comfortable than most places in Texas.

6.7 / 10

April, October and March are the most pleasant months in Katy, while August and July are the least comfortable months.

San Francisco

The annual BestPlaces Comfort Index for San Francisco is 8.5 (10=best), which means it is more comfortable than most places in California.

8.5 / 10

September, August and October are the most pleasant months in San Francisco, while January and December are the least comfortable months.

Average Monthly High / Low (°F)

Month	San Francisco, CA	Katy, TX
January	58° / 46°	63° / 43°
February	60° / 47°	66° / 46°
March	62° / 49°	73° / 52°
April	63° / 50°	80° / 59°
May	65° / 52°	86° / 67°
June	67° / 54°	91° / 73°
July	67° / 55°	94° / 75°
August	69° / 56°	95° / 74°
September	70° / 56°	90° / 69°
October	69° / 54°	82° / 61°
November	64° / 50°	73° / 52°
December	58° / 46°	65° / 44°

Hot, Freezing, Rainy, Snowy Days: San Francisco / Katy

Month	Hot Days	Freezing Days	Rainy Days	Snowy Days
January	0 / 0	0 / 4	12 / 8	0 / 0
February	0 / 0	0 / 2	11 / 8	0 / 0
March	0 / 0	0 / 1	11 / 7	0 / 0
April	0 / 1	0 / 0	6 / 5	0 / 0
May	0 / 7	0 / 0	4 / 7	0 / 0
June	0 / 20	0 / 0	2 / 8	0 / 0
July	0 / 26	0 / 0	1 / 7	0 / 0
August	0 / 27	0 / 0	1 / 8	0 / 0
September	1 / 17	0 / 0	2 / 7	0 / 0
October	0 / 4	0 / 0	4 / 7	0 / 0
November	0 / 0	0 / 1	9 / 7	0 / 0
December	0 / 0	0 / 3	12 / 8	0 / 0

September is the hottest month for San Francisco with an average high temperature of 69.9°, which ranks it as one of the coolest places in California. In San Francisco, there are 0 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for San Francisco are September, October and August.

August is the hottest month for Katy with an average high temperature of 94.6°, which ranks it as cooler than most places in Texas. In Katy, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Katy are April, October and November.

January has the coldest nighttime temperatures for San Francisco with an average of 45.5°. This is one of the warmest places in California.

January has the coldest nighttime temperatures for Katy with an average of 42.5°. This is warmer than most places in Texas.

In San Francisco, there are 1.9 days annually when the high temperature is over 90°, which is one of the coolest places in California.

In Katy, there are 102.1 days annually when the high temperature is over 90°, which is hotter than most places in Texas.

In San Francisco, there are 0.3 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in California.

In Katy, there are 9.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Texas.

In San Francisco, 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 Katy, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Texas.

January is the wettest month in San Francisco with 4.8 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 57% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 24.6 inches in San Francisco means that it is wetter than most places in California.

October is the wettest month in Katy with 4.8 inches of rain, and the driest month is February with 3.3 inches. The wettest season is Winter with 28% of yearly precipitation and 22% occurs in Spring, which is the driest season. The annual rainfall of 48.0 inches in Katy means that it is wetter than most places in Texas.

December is the rainiest month in San Francisco with 11.7 days of rain, and July is the driest month with only 0.6 rainy days. There are 72.3 rainy days annually in San Francisco, which is rainier than most places in California. The rainiest season is Spring when it rains 48% of the time and the driest is Autumn with only a 4% chance of a rainy day.

June is the rainiest month in Katy with 8.4 days of rain, and April is the driest month with only 5.2 rainy days. There are 86.8 rainy days annually in Katy, which is rainier than most places in Texas. The rainiest season is Spring when it rains 27% of the time and the driest is Summer with only a 22% chance of a rainy day.

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

There is rarely any recorded snowfall in Katy, ranking it as one of the least snowy places in Texas.

Any measurable snowfall is a rare occurance in San Francisco.

Any measurable snowfall is a rare occurance in Katy.

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 San Francisco 2 Reviews

Jill · Sherman Oaks, CA

re:

Over 16 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

NC For Me · Apex, NC

re:

Over 16 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

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Reviews for Katy 2 Reviews

Jill · Sherman Oaks, CA

re:

Over 16 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

NC For Me · Apex, NC

re:

Over 16 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

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2025 Compare Climate & Weather:
San Francisco, CA vs Katy, TX

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: San Francisco / Katy

January has the coldest nighttime temperatures for San Francisco with an average of 45.5°. This is one of the warmest places in California.

January has the coldest nighttime temperatures for Katy with an average of 42.5°. This is warmer than most places in Texas.

In San Francisco, there are 1.9 days annually when the high temperature is over 90°, which is one of the coolest places in California.

In Katy, there are 102.1 days annually when the high temperature is over 90°, which is hotter than most places in Texas.

In San Francisco, there are 0.3 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in California.

In Katy, there are 9.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Texas.

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

There is rarely any recorded snowfall in Katy, ranking it as one of the least snowy places in Texas.

Any measurable snowfall is a rare occurance in San Francisco.

Any measurable snowfall is a rare occurance in Katy.

DID YOU KNOW?

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Reviews for Katy 2 Reviews

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2025 Compare Climate & Weather:San Francisco, CA vs Katy, TX

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: San Francisco / Katy

January has the coldest nighttime temperatures for San Francisco with an average of 45.5°. This is one of the warmest places in California.January has the coldest nighttime temperatures for Katy with an average of 42.5°. This is warmer than most places in Texas.

In San Francisco, there are 1.9 days annually when the high temperature is over 90°, which is one of the coolest places in California.In Katy, there are 102.1 days annually when the high temperature is over 90°, which is hotter than most places in Texas.

In San Francisco, there are 0.3 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in California.In Katy, there are 9.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Texas.

There is rarely any recorded snowfall in San Francisco, ranking it as one of the least snowy places in California.There is rarely any recorded snowfall in Katy, ranking it as one of the least snowy places in Texas.

Any measurable snowfall is a rare occurance in San Francisco.Any measurable snowfall is a rare occurance in Katy.

DID YOU KNOW?

Reviews for San Francisco 2 Reviews

Reviews for Katy 2 Reviews

Most Recent Searches On Compare Climate & Weather

Compare Cost of Living

Zips In San Francisco, California

Zips In KATY, TEXAS

Learn More About SAN FRANCISCO, CALIFORNIA

Learn More About Katy, Texas

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BestPlaces Tools

About BestPlaces

Follow Us

2025 Compare Climate & Weather:
San Francisco, CA vs Katy, TX

January has the coldest nighttime temperatures for San Francisco with an average of 45.5°. This is one of the warmest places in California.

January has the coldest nighttime temperatures for Katy with an average of 42.5°. This is warmer than most places in Texas.

In San Francisco, there are 1.9 days annually when the high temperature is over 90°, which is one of the coolest places in California.

In Katy, there are 102.1 days annually when the high temperature is over 90°, which is hotter than most places in Texas.

In San Francisco, there are 0.3 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in California.

In Katy, there are 9.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Texas.

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

There is rarely any recorded snowfall in Katy, ranking it as one of the least snowy places in Texas.

Any measurable snowfall is a rare occurance in San Francisco.

Any measurable snowfall is a rare occurance in Katy.