2025 was an interesting year mainly because, from a climate standpoint, it was unremarkable. The total rainfall matched the 30 year average. In addition, the average annual temperature only departed the 30 year norm by -0.7.
With that said, there were some highlights. Both March and November were extremely wet. In fact, without those two month, it would have been a dry year.
In addition, January, March, July and October were much cooler than normal. Conversely, December was much warmer than normal.
We have El Nino building in the Pacific, so it will be interesting to see how these numbers pan out for 2026. I've posted all the 2025 climate maps below for your viewing.
It was an extremely wet year for the Southern Sierras. When you look across the country, it was one of the few spots that was much higher than the norm. Parts of South Dakota and Arizona were also wet. Otherwise, a lot of the nation was much drier than the norm.
Although San Diego was slightly cooler than normal, most of California was warmer than normal, which followed the national trend. Most of the United States was above normal for temperatures, with the Western states being the warmest.
As always, I've posted the monthly rainfall maps for San Diego County below.
| Average Temperature | Departure From Normal | Total Rainfall |
Departure From Normal | |
| Jan | 56.3 | -2.1 | 0.21 | -1.77 |
| Feb | 59.3 | 0.3 | 0.92 | -1.28 |
| Mar | 58.7 | -2.0 | 2.91 | 1.45 |
| Apr | 61.8 | -1.1 | 0.22 | -0.43 |
| May | 65.2 | 0.4 | 0.15 | -0.13 |
| Jun | 66.5 | -0.7 | 0.01 | -0.04 |
| Jul | 69.1 | -1.6 | 0.00 | -0.08 |
| Aug | 71.3 | -1.1 | 0.05 | 0.04 |
| Sep | 72.1 | 0.4 | 0.46 | 0.34 |
| Oct | 66.2 | -1.9 | 0.41 | -0.09 |
| Nov | 62.0 | -0.7 | 3.10 | 2.31 |
| Dec | 60.1 | 2.2 | 1.21 | -0.46 |
| Total | 64.1 | -0.7 | 9.7 | 0.0 |
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