| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 5.22 | 5.02 | 0.20 |
| Feb | 5.16 | 5.08 | 0.08 |
| Mar | 5.49 | 5.41 | 0.08 |
| Apr | 4.56 | 4.49 | 0.07 |
| May | 3.88 | 3.85 | 0.03 |
| Jun | 4.43 | 4.21 | 0.22 |
| Jul | 4.87 | 4.52 | 0.35 |
| Aug | 4.06 | 3.90 | 0.16 |
| Sep | 4.01 | 4.06 | -0.05 |
| Oct | 3.50 | 3.49 | 0.01 |
| Nov | 4.47 | 4.40 | 0.07 |
| Dec | 5.11 | 5.03 | 0.08 |
54.76 | 53.46 | 1.30 |