| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.61 | 0.57 | 0.04 |
| Feb | 0.80 | 0.68 | 0.12 |
| Mar | 1.43 | 1.34 | 0.09 |
| Apr | 2.28 | 2.21 | 0.07 |
| May | 2.67 | 2.46 | 0.21 |
| Jun | 1.78 | 1.69 | 0.09 |
| Jul | 1.89 | 1.74 | 0.15 |
| Aug | 1.60 | 1.61 | -0.01 |
| Sep | 1.34 | 1.29 | 0.05 |
| Oct | 1.16 | 1.12 | 0.04 |
| Nov | 0.95 | 0.85 | 0.10 |
| Dec | 0.55 | 0.54 | 0.01 |
17.06 | 16.10 | 0.96 |