How much has Chula Vista warmed?
Each stripe below is one year of average temperature in San Diego County, from 1895 on the left to 2025 on the right. Blue years were cooler than the 20th-century average of 61.2°F, and red years were warmer.
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- Last 10 years
- +2.8°F2016-2025 vs the 1901-2000 average
- Warmest year
- 2018then 2017, 2016, 2015
- Coldest year
- 1912in the 1895-2025 record
- 20th-century average
- 61.2°Fall months, San Diego County
Decade by decade
Average difference from the 1901-2000 average, by decade. The 2020s cover 2020 to 2025.
Nearby cities
See which cities have warmed the most in our warming ranking, or today's normal weather month by month in Chula Vista.
Frequently asked questions
How much warmer is Chula Vista than it used to be?
In San Diego County, the ten years from 2016 to 2025 averaged 2.8°F warmer than the 20th-century average of 61.2°F, according to NOAA's county temperature records.
What was the warmest year on record in Chula Vista?
The warmest years in NOAA's county record are 2018, 2017, 2016, 2015 and 2014. The coldest was 1912.
What are climate stripes?
Each stripe is one year. Its color shows how that year's average temperature compares with the long-term average: blue for cooler, red for warmer, darker for bigger differences. The design comes from climate scientist Ed Hawkins.
Source: NOAA National Centers for Environmental Information, nClimDiv county average temperature (version 1.0.0, October 2026 release). Values are county averages built from adjusted weather station records on a 5 km grid, so they describe San Diego County as a whole rather than downtown Chula Vista, and they correct for changes in stations and instruments over time. Incomplete years are left out. Stripes design by Ed Hawkins (#ShowYourStripes).