| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.73 | 0.84 | -0.11 |
| Feb | 0.76 | 0.88 | -0.12 |
| Mar | 1.54 | 1.54 | 0.00 |
| Apr | 2.95 | 2.90 | 0.05 |
| May | 4.17 | 4.22 | -0.05 |
| Jun | 4.72 | 4.48 | 0.24 |
| Jul | 4.07 | 4.10 | -0.03 |
| Aug | 4.29 | 4.40 | -0.11 |
| Sep | 3.34 | 3.24 | 0.10 |
| Oct | 2.59 | 2.54 | 0.05 |
| Nov | 1.50 | 1.54 | -0.04 |
| Dec | 1.05 | 1.20 | -0.15 |
31.71 | 31.88 | -0.17 |