| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.84 | 0.80 | 0.04 |
| Feb | 0.90 | 0.82 | 0.08 |
| Mar | 1.73 | 1.62 | 0.11 |
| Apr | 3.06 | 2.86 | 0.20 |
| May | 4.35 | 4.28 | 0.07 |
| Jun | 4.84 | 4.93 | -0.09 |
| Jul | 4.25 | 3.96 | 0.29 |
| Aug | 4.37 | 4.42 | -0.05 |
| Sep | 3.27 | 3.24 | 0.03 |
| Oct | 2.52 | 2.53 | -0.01 |
| Nov | 1.60 | 1.52 | 0.08 |
| Dec | 1.19 | 1.15 | 0.04 |
32.92 | 32.13 | 0.79 |