| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.00 | 3.03 | -0.03 |
| Feb | 2.57 | 2.54 | 0.03 |
| Mar | 3.51 | 3.50 | 0.01 |
| Apr | 4.12 | 4.02 | 0.10 |
| May | 4.38 | 4.29 | 0.09 |
| Jun | 4.51 | 4.49 | 0.02 |
| Jul | 4.31 | 4.27 | 0.04 |
| Aug | 3.55 | 3.40 | 0.15 |
| Sep | 3.01 | 3.06 | -0.05 |
| Oct | 2.93 | 2.92 | 0.01 |
| Nov | 2.97 | 2.88 | 0.09 |
| Dec | 3.09 | 3.05 | 0.04 |
41.95 | 41.45 | 0.50 |