| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.83 | 0.80 | 0.03 |
| Feb | 0.89 | 0.81 | 0.08 |
| Mar | 1.72 | 1.61 | 0.11 |
| Apr | 3.05 | 2.85 | 0.20 |
| May | 4.35 | 4.25 | 0.10 |
| Jun | 4.84 | 4.91 | -0.07 |
| Jul | 4.27 | 4.00 | 0.27 |
| Aug | 4.41 | 4.44 | -0.03 |
| Sep | 3.26 | 3.37 | -0.11 |
| Oct | 2.54 | 2.51 | 0.03 |
| Nov | 1.60 | 1.53 | 0.07 |
| Dec | 1.19 | 1.14 | 0.05 |
32.95 | 32.22 | 0.73 |