| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.41 | 3.53 | -0.12 |
| Feb | 3.53 | 3.64 | -0.11 |
| Mar | 4.62 | 4.59 | 0.03 |
| Apr | 4.93 | 4.83 | 0.10 |
| May | 5.33 | 5.24 | 0.09 |
| Jun | 4.85 | 4.84 | 0.01 |
| Jul | 4.55 | 4.24 | 0.31 |
| Aug | 3.55 | 3.33 | 0.22 |
| Sep | 3.56 | 3.49 | 0.07 |
| Oct | 3.80 | 3.83 | -0.03 |
| Nov | 3.60 | 3.60 | 0.00 |
| Dec | 4.21 | 4.35 | -0.14 |
49.94 | 49.51 | 0.43 |