| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.76 | 0.96 | -0.20 |
| Feb | 0.79 | 0.90 | -0.11 |
| Mar | 1.61 | 1.72 | -0.11 |
| Apr | 2.91 | 3.14 | -0.23 |
| May | 4.17 | 4.18 | -0.01 |
| Jun | 4.52 | 4.71 | -0.19 |
| Jul | 4.21 | 4.41 | -0.20 |
| Aug | 4.55 | 4.38 | 0.17 |
| Sep | 3.34 | 3.27 | 0.07 |
| Oct | 2.74 | 2.86 | -0.12 |
| Nov | 1.58 | 1.72 | -0.14 |
| Dec | 1.09 | 1.29 | -0.20 |
32.27 | 33.54 | -1.27 |