Climate-Zone.com

HomeCitiesUnited StatesCaliforniaFallbrookTools › Climate trends

Has the climate in Fallbrook changed?

Fallbrook has warmed about 0.5°F since 2009.

About 0.3°F per decade, measured from Fallbrook's official daily weather records, 2009–2025. Individual years still bounce around — some recent ones came in cool — but the long-term line has clearly risen.

Is that a lot? Fallbrook's climate has warmed more slowly than most other cities in United States.

What has actually changed

Each card compares the 1970s (the first ten years of the record) with recent years (the last ten) — the same span the headline and the chart use.

Freezing nights
about the same
1970s
0 / yr
Recent
0 / yr
Winters about as cold as before
Average temperature
+0.7°F
1970s
64.6°F
Recent
65.3°F
A steady upward drift
Hot days above 90°F
12 more days
1970s
48 / yr
Recent
60 / yr
More days of serious heat
Rainy days
about the same
1970s
53 / yr
Recent
52 / yr
Rainfall pattern about the same

Fallbrook's temperature, year by year

Average temperature for each year from 2009 to 2025.

62°64°66°68°70°2009: 65.3°F2010: 63.3°F2011: 63.5°F2012: 65.5°F2013: 65.4°F2014: 68.2°F2015: 67.5°F2016: 66.8°F2017: 67.0°F2018: 66.5°F2019: 64.3°F2020: 66.6°F2021: 65.2°F2022: 66.6°F2023: 63.7°F2024: 65.0°F2025: 66.0°Flong-term trend2009201020202025
a warmer-than-average year a cooler-than-average year

Each bar is one year. Most recent years sit above the older ones. Some recent years still came in cool — warming is a slope, not a straight climb.

Methodology & sources

Temperature — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Fallbrook 5 NE (NOAA GHCN station USW00053151), about 9 km from the city centre.

How we build these numbers →