| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.10 | 1.19 | -0.09 |
| Feb | 1.35 | 1.46 | -0.11 |
| Mar | 2.12 | 2.19 | -0.07 |
| Apr | 3.72 | 3.76 | -0.04 |
| May | 4.52 | 4.62 | -0.10 |
| Jun | 5.50 | 5.37 | 0.13 |
| Jul | 4.33 | 4.33 | 0.00 |
| Aug | 4.25 | 4.15 | 0.10 |
| Sep | 3.61 | 3.56 | 0.05 |
| Oct | 2.95 | 2.91 | 0.04 |
| Nov | 2.13 | 2.16 | -0.03 |
| Dec | 1.62 | 1.66 | -0.04 |
37.20 | 37.36 | -0.16 |