| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.62 | 0.59 | 0.03 |
| Feb | 0.85 | 0.79 | 0.06 |
| Mar | 1.49 | 1.38 | 0.11 |
| Apr | 2.95 | 2.88 | 0.07 |
| May | 3.98 | 3.98 | 0.00 |
| Jun | 4.66 | 4.35 | 0.31 |
| Jul | 3.34 | 3.27 | 0.07 |
| Aug | 3.13 | 3.14 | -0.01 |
| Sep | 3.13 | 2.62 | 0.51 |
| Oct | 2.28 | 2.33 | -0.05 |
| Nov | 1.24 | 1.20 | 0.04 |
| Dec | 0.89 | 0.86 | 0.03 |
28.56 | 27.39 | 1.17 |