| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.85 | 4.52 | 0.33 |
| Feb | 3.97 | 3.65 | 0.32 |
| Mar | 4.87 | 4.57 | 0.30 |
| Apr | 4.98 | 4.78 | 0.20 |
| May | 5.16 | 4.77 | 0.39 |
| Jun | 5.03 | 4.92 | 0.11 |
| Jul | 5.26 | 4.74 | 0.52 |
| Aug | 5.84 | 5.53 | 0.31 |
| Sep | 5.29 | 5.14 | 0.15 |
| Oct | 4.57 | 4.41 | 0.16 |
| Nov | 4.34 | 3.72 | 0.62 |
| Dec | 4.95 | 4.73 | 0.22 |
59.11 | 55.48 | 3.63 |