| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.55 | 0.57 | -0.02 |
| Feb | 0.72 | 0.66 | 0.06 |
| Mar | 1.23 | 1.18 | 0.05 |
| Apr | 2.57 | 2.55 | 0.02 |
| May | 3.62 | 3.54 | 0.08 |
| Jun | 3.90 | 3.76 | 0.14 |
| Jul | 3.28 | 3.00 | 0.28 |
| Aug | 3.05 | 2.90 | 0.15 |
| Sep | 2.89 | 2.76 | 0.13 |
| Oct | 2.18 | 2.10 | 0.08 |
| Nov | 0.91 | 0.88 | 0.03 |
| Dec | 0.65 | 0.65 | 0.00 |
25.55 | 24.55 | 1.00 |