| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.08 | 3.16 | -0.08 |
| Feb | 2.80 | 2.77 | 0.03 |
| Mar | 3.82 | 3.62 | 0.20 |
| Apr | 3.95 | 3.90 | 0.05 |
| May | 4.15 | 4.27 | -0.12 |
| Jun | 4.35 | 4.33 | 0.02 |
| Jul | 4.48 | 4.48 | 0.00 |
| Aug | 3.38 | 3.43 | -0.05 |
| Sep | 3.32 | 3.14 | 0.18 |
| Oct | 3.01 | 2.96 | 0.05 |
| Nov | 2.97 | 2.84 | 0.13 |
| Dec | 3.20 | 3.20 | 0.00 |
42.51 | 42.10 | 0.41 |