| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.09 | 1.16 | -0.07 |
| Feb | 1.35 | 1.41 | -0.06 |
| Mar | 2.13 | 2.19 | -0.06 |
| Apr | 3.68 | 3.75 | -0.07 |
| May | 4.57 | 4.62 | -0.05 |
| Jun | 5.43 | 5.34 | 0.09 |
| Jul | 4.28 | 4.31 | -0.03 |
| Aug | 4.28 | 4.16 | 0.12 |
| Sep | 3.60 | 3.50 | 0.10 |
| Oct | 2.92 | 2.90 | 0.02 |
| Nov | 2.15 | 2.15 | 0.00 |
| Dec | 1.58 | 1.63 | -0.05 |
37.06 | 37.12 | -0.06 |