| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.84 | 0.80 | 0.04 |
| Feb | 0.90 | 0.81 | 0.09 |
| Mar | 1.73 | 1.61 | 0.12 |
| Apr | 3.06 | 2.85 | 0.21 |
| May | 4.35 | 4.26 | 0.09 |
| Jun | 4.84 | 4.91 | -0.07 |
| Jul | 4.25 | 3.98 | 0.27 |
| Aug | 4.39 | 4.45 | -0.06 |
| Sep | 3.26 | 3.33 | -0.07 |
| Oct | 2.52 | 2.52 | 0.00 |
| Nov | 1.60 | 1.53 | 0.07 |
| Dec | 1.19 | 1.14 | 0.05 |
32.93 | 32.19 | 0.74 |