| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.58 | 0.56 | 0.02 |
| Feb | 0.70 | 0.69 | 0.01 |
| Mar | 1.56 | 1.49 | 0.07 |
| Apr | 2.40 | 2.25 | 0.15 |
| May | 2.89 | 2.70 | 0.19 |
| Jun | 1.88 | 1.77 | 0.11 |
| Jul | 1.82 | 1.52 | 0.30 |
| Aug | 1.70 | 1.42 | 0.28 |
| Sep | 1.50 | 1.74 | -0.24 |
| Oct | 1.29 | 1.27 | 0.02 |
| Nov | 0.88 | 0.86 | 0.02 |
| Dec | 0.56 | 0.55 | 0.01 |
17.76 | 16.82 | 0.94 |