| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.12 | 1.02 | 0.10 |
| Feb | 1.21 | 1.09 | 0.12 |
| Mar | 1.97 | 1.90 | 0.07 |
| Apr | 4.04 | 3.92 | 0.12 |
| May | 4.87 | 4.72 | 0.15 |
| Jun | 5.96 | 6.00 | -0.04 |
| Jul | 4.59 | 4.45 | 0.14 |
| Aug | 4.35 | 4.24 | 0.11 |
| Sep | 3.83 | 3.64 | 0.19 |
| Oct | 2.77 | 2.73 | 0.04 |
| Nov | 2.06 | 1.87 | 0.19 |
| Dec | 1.48 | 1.37 | 0.11 |
38.25 | 36.95 | 1.30 |