| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.21 | 2.25 | -0.04 |
| Feb | 1.92 | 2.00 | -0.08 |
| Mar | 2.62 | 2.70 | -0.08 |
| Apr | 3.95 | 3.86 | 0.09 |
| May | 4.48 | 4.50 | -0.02 |
| Jun | 4.64 | 4.43 | 0.21 |
| Jul | 4.12 | 4.04 | 0.08 |
| Aug | 3.35 | 3.19 | 0.16 |
| Sep | 3.23 | 3.07 | 0.16 |
| Oct | 3.27 | 3.19 | 0.08 |
| Nov | 3.04 | 2.95 | 0.09 |
| Dec | 2.29 | 2.32 | -0.03 |
39.12 | 38.50 | 0.62 |