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San Martin Average Weather

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January38°F60°F47°F6.0"
February44°F62°F52°F7.2"
March44°F65°F53°F5.4"
April43°F67°F54°F2.8"
May48°F69°F57°F1.3"
June50°F72°F59°F2.4"
July54°F73°F61°F0.1"
August53°F74°F61°F0.0"
September51°F74°F60°F1.9"
October47°F73°F58°F2.0"
November45°F69°F55°F2.7"
December41°F61°F50°F9.8"

Did you know?

  • The highest monthly average temperature in San Martin for July is 61 degrees.
  • The lowest monthly average temperature in San Martin for January is 47 degrees.
  • The most monthly precipitation in San Martin occurs in December with 9.8 inches.
  • The air quality index in San Martin is 3% better than the national average.
  • The pollution index in San Martin is 7% worse than the national average.

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Compare San Martin, CA Weather To Other Cities

San Martin air quality index & pollution index

In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
IndexSan MartinCaliforniaNational
Air quality index485550
Pollution index5,429,55018,106,7265,066,862

San Martin air quality information

MeasurementTotal
Days measured365
Days with good air quality204
Days with moderate air quality153
Days w/ poor A.Q. for sensitive groups7
Days with unhealthy air quality1

San Martin air quality information

PollutantTotal
Arsenic0.020%
Benzene0.080%
Carbon Tetrachloride0.000%
Lead0.050%
Mercury0.150%

Average monthly San Martin temperature with heat index

San Martin monthly precipitation with daily maximum

San Martin monthly snow depth with daily maximum

San Martin monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Aromas, CA2,5083628%
Gilroy, CA52,5763628%
Corralitos, CA2,5573628%
Interlaken, CA6,7383628%
Pajaro, CA3,5243628%
San Martin, CA7,245484%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Lake Shore, WA7,2473824%
Salem, UT7,247476%
Quincy, WA7,2482746%
Orland Hills, IL7,2416020%
La Feria, TX7,2414118%
San Martin, CA7,245484%
Source: The San Martin, CA weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.