| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.57 | 3.47 | 0.10 |
| Feb | 3.87 | 3.89 | -0.02 |
| Mar | 5.08 | 4.96 | 0.12 |
| Apr | 5.33 | 5.31 | 0.02 |
| May | 5.45 | 5.35 | 0.10 |
| Jun | 3.58 | 3.54 | 0.04 |
| Jul | 3.85 | 3.63 | 0.22 |
| Aug | 3.70 | 3.50 | 0.20 |
| Sep | 3.55 | 3.41 | 0.14 |
| Oct | 4.09 | 3.98 | 0.11 |
| Nov | 4.82 | 4.75 | 0.07 |
| Dec | 4.69 | 4.79 | -0.10 |
51.58 | 50.58 | 1.00 |