Zip code 90403, Santa Monica CA is in Zone 11a: 40F to 45F. Using updated climate data through 2010, 90403 is in the Plantmaps Hardiness Zone 10b: 35F to 40F. The average first frost in 90403 is between January 21 - 31, while the average last frost occurs between January 1 - 10. 90403 is part of Ecoregion . 90403 rarely has days where the temperatue exceeds 86°F. The average annual high temperature in 90403 is 72°F and the average annual low temperature is 55°F. The average high temperature in July (Summer) is 80°F, while the average high temperature in January (Winter) is 66°F.
The cities below are at least partially located in ZIP code 90403. In addition to the primary city for a ZIP code, USPS also publishes a list of other acceptable cities that can be used with ZIP code 90403. However, if you are mailing something to ZIP code 90403, you should not use any of the cities listed as unacceptable. Choose from the primary or acceptable cities when mailing your package or letter.
ZIP code 90403 is located in California and covers a slightly less than average land area compared to other ZIP codes in the United States. It also has an extremely large population density.
The people living in ZIP code 90403 are primarily white. The percentage of young adults, adults, middle aged, and seniors in this area are slightly less than average, extremely large, slightly less than average, and slightly larger than average, respectively. The percentage of children under 18 living in the 90403 ZIP code is extremely small compared to other areas of the country.
|Zip Code 90403 Interactive Gardening Maps|
|California USDA Hardiness Map|
|California PlantMaps 2010 Hardiness Map|
|California Heat Zones Map|
|California Average First Frost Map|
|California Average Last Frost: Map|
|Current Drought Conditions|
|Palmer Drought Rating:||Severe Drought|
|Palmer Drought Index||-3.70|
|Precip Needed to End Drought||10.30|