| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.30 | 2.45 | -0.15 |
| Feb | 1.79 | 1.86 | -0.07 |
| Mar | 2.06 | 2.10 | -0.04 |
| Apr | 2.32 | 2.43 | -0.11 |
| May | 3.59 | 3.26 | 0.33 |
| Jun | 8.44 | 9.64 | -1.20 |
| Jul | 8.38 | 9.08 | -0.70 |
| Aug | 8.63 | 10.13 | -1.50 |
| Sep | 7.86 | 8.87 | -1.01 |
| Oct | 3.44 | 3.39 | 0.05 |
| Nov | 1.75 | 1.74 | 0.01 |
| Dec | 1.84 | 1.95 | -0.11 |
52.40 | 56.90 | -4.50 |