| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.68 | 3.50 | 0.18 |
| Feb | 3.15 | 3.10 | 0.05 |
| Mar | 4.26 | 4.11 | 0.15 |
| Apr | 4.23 | 4.17 | 0.06 |
| May | 3.68 | 3.52 | 0.16 |
| Jun | 4.39 | 4.35 | 0.04 |
| Jul | 3.97 | 4.04 | -0.07 |
| Aug | 4.23 | 4.18 | 0.05 |
| Sep | 4.29 | 3.97 | 0.32 |
| Oct | 4.84 | 4.64 | 0.20 |
| Nov | 3.86 | 3.76 | 0.10 |
| Dec | 4.51 | 4.39 | 0.12 |
49.09 | 47.73 | 1.36 |