| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.42 | 1.16 | 0.26 |
| Feb | 1.18 | 1.07 | 0.11 |
| Mar | 1.76 | 1.62 | 0.14 |
| Apr | 2.81 | 2.65 | 0.16 |
| May | 3.64 | 3.58 | 0.06 |
| Jun | 4.30 | 4.46 | -0.16 |
| Jul | 4.11 | 4.02 | 0.09 |
| Aug | 3.52 | 3.57 | -0.05 |
| Sep | 3.73 | 3.54 | 0.19 |
| Oct | 3.58 | 3.49 | 0.09 |
| Nov | 2.13 | 1.90 | 0.23 |
| Dec | 1.64 | 1.51 | 0.13 |
33.82 | 32.57 | 1.25 |