2024 Compare Climate & Weather:
San Ramon, CA vs Phoenix, AZ
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Highlights
On average, there are 299 sunny days per year in Phoenix. San Ramon averages 256 sunny days per year. The US average is 205 sunny days.
Phoenix, Arizona gets 9.2 inches of rain, on average, per year. San Ramon, California gets 19 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.
Phoenix averages 0 inches of snow per year. San Ramon averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.
Weather Highlights
Phoenix, Arizona
Summer High: the July high is around 104.5 degrees
Winter Low: the January low is 43.2
Rain: averages 9.2 inches of rain a year
Snow: averages 0 inches of snow a year
San Ramon, California
Summer High: the July high is around 84.4 degrees
Winter Low: the January low is 39.2
Rain: averages 19 inches of rain a year
Snow: averages 0 inches of snow a year
BESTPLACES COMFORT INDEX
PhoenixThe annual BestPlaces Comfort Index for Phoenix is 7.3 (10=best), which means it is less comfortable than most places in Arizona.
7.3 / 10
April, March and November are the most pleasant months in Phoenix, while July and August are the least comfortable months.
San RamonThe annual BestPlaces Comfort Index for San Ramon is 8.5 (10=best), which means it is more comfortable than most places in California.
8.5 / 10
June, September and October are the most pleasant months in San Ramon, while January and December are the least comfortable months.
Today's Weather - San Ramon, CA
8 PM PST
Mostly Clear
61°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| Tonight | Mostly Clear | 48° / 74° | WSW 6 mph |
| Monday Night | Partly Cloudy | 49° / 72° | WSW 6 to 9 mph |
| Tuesday Night | Mostly Clear | 50° / 76° | SW 5 to 10 mph |
| Wednesday Night | Clear | 50° / 81° | WSW 2 to 9 mph |
| Thursday Night | Clear | 52° / 84° | WSW 2 to 8 mph |
| Friday Night | Mostly Clear | 50° / 78° | WSW 3 to 9 mph |
| Saturday Night | Mostly Clear | 51° / 77° | SW 5 to 10 mph |
Today's Weather - Phoenix, AZ
8 PM PST
Clear
88°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| Tonight | Clear | 71° / 100° | N 5 mph |
| Monday Night | Clear | 72° / 103° | NNW 5 mph |
| Tuesday Night | Mostly Clear | 73° / 102° | WNW 5 to 10 mph |
| Wednesday Night | Clear | 72° / 100° | SSW 5 to 10 mph |
| Thursday Night | Clear | 73° / 100° | SW 0 to 10 mph |
| Friday Night | Clear | 73° / 102° | WNW 0 to 5 mph |
| Saturday Night | Mostly Clear | 74° / 102° | WNW 0 to 5 mph |
Average Monthly High / Low (°F)
| Month | San Ramon, CA | Phoenix, AZ |
|---|
| January | 57° / 39° | 67° / 43° |
| February | 61° / 42° | 70° / 46° |
| March | 65° / 44° | 76° / 50° |
| April | 69° / 46° | 84° / 57° |
| May | 74° / 50° | 94° / 65° |
| June | 80° / 54° | 102° / 73° |
| July | 84° / 56° | 105° / 80° |
| August | 84° / 56° | 103° / 80° |
| September | 82° / 55° | 98° / 73° |
| October | 76° / 50° | 88° / 61° |
| November | 65° / 44° | 75° / 49° |
| December | 57° / 40° | 65° / 42° |
Hot, Freezing, Rainy, Snowy Days: San Ramon / Phoenix
| Month | Hot Days | Freezing Days | Rainy Days | Snowy Days |
|---|
| January | 0 / 0 | 4 / 1 | 11 / 4 | 0 / 0 |
| February | 0 / 0 | 1 / 0 | 11 / 4 | 0 / 0 |
| March | 0 / 1 | 0 / 0 | 9 / 4 | 0 / 0 |
| April | 0 / 8 | 0 / 0 | 6 / 2 | 0 / 0 |
| May | 2 / 22 | 0 / 0 | 3 / 1 | 0 / 0 |
| June | 5 / 29 | 0 / 0 | 1 / 0 | 0 / 0 |
| July | 9 / 31 | 0 / 0 | 0 / 4 | 0 / 0 |
| August | 9 / 31 | 0 / 0 | 0 / 4 | 0 / 0 |
| September | 7 / 28 | 0 / 0 | 1 / 3 | 0 / 0 |
| October | 2 / 13 | 0 / 0 | 3 / 2 | 0 / 0 |
| November | 0 / 1 | 1 / 0 | 7 / 2 | 0 / 0 |
| December | 0 / 0 | 4 / 2 | 11 / 4 | 0 / 0 |
July is the hottest month for San Ramon with an average high temperature of 84.4°, which ranks it as cooler than most places in California. In San Ramon, there are 6 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for San Ramon are June, October and May.
July is the hottest month for Phoenix with an average high temperature of 104.5°, which ranks it as warmer than most places in Arizona. In Phoenix, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Phoenix are March, November and April.
January has the coldest nighttime temperatures for San Ramon with an average of 39.2°. This is warmer than most places in California.
December has the coldest nighttime temperatures for Phoenix with an average of 42.2°. This is one of the warmest places in Arizona.
In San Ramon, there are 35.4 days annually when the high temperature is over 90°, which is cooler than most places in California.
In Phoenix, there are 163.2 days annually when the high temperature is over 90°, which is hotter than most places in Arizona.
In San Ramon, there are 11.1 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.
In Phoenix, there are 3.2 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Arizona.
In San Ramon, 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 Phoenix, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Arizona.
February is the wettest month in San Ramon with 3.5 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 55% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 19.0 inches in San Ramon means that it is about average compared to other places in California.
August is the wettest month in Phoenix with 1.1 inches of rain, and the driest month is June with 0.0 inches. The wettest season is Spring with 35% of yearly precipitation and 16% occurs in Summer, which is the driest season. The annual rainfall of 9.2 inches in Phoenix means that it is drier than most places in Arizona.
December is the rainiest month in San Ramon with 10.9 days of rain, and July is the driest month with only 0.2 rainy days. There are 64.2 rainy days annually in San Ramon, which is rainier than most 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.
August is the rainiest month in Phoenix with 4.0 days of rain, and June is the driest month with only 0.4 rainy days. There are 33.1 rainy days annually in Phoenix, which is less rainy than most places in Arizona. The rainiest season is Spring when it rains 34% of the time and the driest is Summer with only a 20% chance of a rainy day.
There is rarely any recorded snowfall in San Ramon, ranking it as one of the least snowy places in California.
There is rarely any recorded snowfall in Phoenix, ranking it as one of the least snowy places in Arizona.
Any measurable snowfall is a rare occurance in San Ramon.
Any measurable snowfall is a rare occurance in Phoenix.
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 Ramon 
2 Reviews
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
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
Start Your Review of San Ramon
Reviews for Phoenix 2 Reviews
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
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
Start Your Review of Phoenix
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