| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.08 | 1.07 | 0.01 |
| Feb | 1.14 | 1.10 | 0.04 |
| Mar | 1.94 | 2.00 | -0.06 |
| Apr | 3.90 | 3.91 | -0.01 |
| May | 4.68 | 4.60 | 0.08 |
| Jun | 5.93 | 5.91 | 0.02 |
| Jul | 4.78 | 4.80 | -0.02 |
| Aug | 4.17 | 4.10 | 0.07 |
| Sep | 3.79 | 3.68 | 0.11 |
| Oct | 2.73 | 2.71 | 0.02 |
| Nov | 1.90 | 1.85 | 0.05 |
| Dec | 1.40 | 1.45 | -0.05 |
37.44 | 37.18 | 0.26 |