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Rainfall Totals Last 24 Hours in Fullerton, CA
Last Rain · 24 Hours · 72 Hours · 7 Days · 30 Days
This Month · This Year
How much rain did Fullerton, CA get?
| Last RainMay 29, 2026 | 24 Hours | 72 Hours | 7 Days | 30 Days | This Month | This Year |
|---|---|---|---|---|---|---|
| 0.02″ | 0.00″ | 0.00″ | 0.00″ | 0.00″ | 0.00″ | 5.36″ |
Precipitation by month
Wettest month
5.39″
November 2025
Driest month
0.00″
June 2026
Longest dry streak
99 days
ended Sep 5
Most rain in 24 hours
2.16″
Nov 15
| Month | Rain | Normal | % of normal | Rainy days |
|---|---|---|---|---|
| October 2025 | 1.79″ | 0.50″ | 358% | 3 |
| November 2025 | 5.39″ | 0.74″ | 728% | 6 |
| December 2025 | 3.22″ | 1.86″ | 173% | 5 |
| January 2026 | 1.84″ | 2.85″ | 65% | 5 |
| February 2026 | 2.89″ | 3.02″ | 96% | 5 |
| March 2026 | 0.09″ | 1.74″ | 5% | 1 |
| April 2026 | 0.44″ | 0.59″ | 75% | 4 |
| May 2026 | 0.10″ | 0.30″ | — | 2 |
| June 2026 | 0.00″ | 0.08″ | — | 0 |
| July 2026 | 0.00″ | 0.02″ | — | 0 |
| August 2026 | 0.00″ | 0.02″ | — | 0 |
| September 2026 | 0.00″ | 0.14″ | — | 0 |