| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.49 | 0.51 | -0.02 |
| Feb | 0.81 | 0.73 | 0.08 |
| Mar | 1.21 | 1.20 | 0.01 |
| Apr | 2.69 | 2.84 | -0.15 |
| May | 3.62 | 3.59 | 0.03 |
| Jun | 3.90 | 3.92 | -0.02 |
| Jul | 3.07 | 3.05 | 0.02 |
| Aug | 2.97 | 2.95 | 0.02 |
| Sep | 2.78 | 2.73 | 0.05 |
| Oct | 2.03 | 2.06 | -0.03 |
| Nov | 0.91 | 0.94 | -0.03 |
| Dec | 0.67 | 0.67 | 0.00 |
25.15 | 25.19 | -0.04 |