| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.86 | 0.83 | 0.03 |
| Feb | 0.92 | 0.91 | 0.01 |
| Mar | 1.77 | 1.70 | 0.07 |
| Apr | 3.23 | 3.15 | 0.08 |
| May | 4.32 | 4.31 | 0.01 |
| Jun | 5.24 | 5.27 | -0.03 |
| Jul | 4.34 | 4.50 | -0.16 |
| Aug | 4.14 | 4.28 | -0.14 |
| Sep | 3.38 | 3.43 | -0.05 |
| Oct | 2.53 | 2.60 | -0.07 |
| Nov | 1.54 | 1.49 | 0.05 |
| Dec | 1.20 | 1.10 | 0.10 |
33.47 | 33.57 | -0.10 |