| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.98 | 3.11 | -0.13 |
| Feb | 2.52 | 2.54 | -0.02 |
| Mar | 3.19 | 3.21 | -0.02 |
| Apr | 3.47 | 3.51 | -0.04 |
| May | 3.91 | 3.88 | 0.03 |
| Jun | 4.10 | 4.20 | -0.10 |
| Jul | 4.23 | 4.14 | 0.09 |
| Aug | 3.58 | 3.38 | 0.20 |
| Sep | 3.49 | 3.45 | 0.04 |
| Oct | 2.99 | 2.94 | 0.05 |
| Nov | 2.81 | 2.90 | -0.09 |
| Dec | 2.97 | 3.08 | -0.11 |
40.24 | 40.34 | -0.10 |