| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.93 | 2.05 | -0.12 |
| Feb | 1.83 | 1.92 | -0.09 |
| Mar | 2.27 | 2.25 | 0.02 |
| Apr | 3.74 | 3.77 | -0.03 |
| May | 4.51 | 4.60 | -0.09 |
| Jun | 4.51 | 4.32 | 0.19 |
| Jul | 3.80 | 3.60 | 0.20 |
| Aug | 3.74 | 4.00 | -0.26 |
| Sep | 3.30 | 3.28 | 0.02 |
| Oct | 3.27 | 3.35 | -0.08 |
| Nov | 2.42 | 2.51 | -0.09 |
| Dec | 2.10 | 2.17 | -0.07 |
37.42 | 37.82 | -0.40 |