| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.02 | 3.07 | -0.05 |
| Feb | 2.48 | 2.43 | 0.05 |
| Mar | 3.59 | 3.50 | 0.09 |
| Apr | 4.31 | 4.16 | 0.15 |
| May | 4.56 | 4.55 | 0.01 |
| Jun | 4.52 | 4.49 | 0.03 |
| Jul | 4.32 | 4.25 | 0.07 |
| Aug | 3.23 | 3.15 | 0.08 |
| Sep | 3.14 | 2.96 | 0.18 |
| Oct | 2.97 | 2.90 | 0.07 |
| Nov | 3.00 | 2.93 | 0.07 |
| Dec | 3.10 | 3.08 | 0.02 |
42.24 | 41.47 | 0.77 |