| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.89 | 2.97 | -0.08 |
| Feb | 2.18 | 2.16 | 0.02 |
| Mar | 2.86 | 2.68 | 0.18 |
| Apr | 3.58 | 3.62 | -0.04 |
| May | 3.42 | 3.41 | 0.01 |
| Jun | 3.91 | 3.84 | 0.07 |
| Jul | 3.88 | 4.14 | -0.26 |
| Aug | 3.55 | 3.81 | -0.26 |
| Sep | 3.95 | 3.91 | 0.04 |
| Oct | 4.02 | 4.47 | -0.45 |
| Nov | 3.56 | 3.48 | 0.08 |
| Dec | 3.11 | 3.24 | -0.13 |
40.91 | 41.73 | -0.82 |