| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.70 | 3.53 | 0.17 |
| Feb | 3.38 | 3.28 | 0.10 |
| Mar | 4.38 | 4.22 | 0.16 |
| Apr | 4.35 | 4.14 | 0.21 |
| May | 3.66 | 3.57 | 0.09 |
| Jun | 4.29 | 4.14 | 0.15 |
| Jul | 3.74 | 3.70 | 0.04 |
| Aug | 4.01 | 4.02 | -0.01 |
| Sep | 4.10 | 3.86 | 0.24 |
| Oct | 4.89 | 4.87 | 0.02 |
| Nov | 4.07 | 3.70 | 0.37 |
| Dec | 4.45 | 4.50 | -0.05 |
49.02 | 47.53 | 1.49 |