| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.77 | 0.86 | -0.09 |
| Feb | 0.80 | 0.87 | -0.07 |
| Mar | 1.58 | 1.60 | -0.02 |
| Apr | 2.99 | 3.00 | -0.01 |
| May | 4.25 | 4.27 | -0.02 |
| Jun | 4.91 | 4.59 | 0.32 |
| Jul | 4.10 | 4.05 | 0.05 |
| Aug | 4.30 | 4.49 | -0.19 |
| Sep | 3.31 | 3.24 | 0.07 |
| Oct | 2.54 | 2.57 | -0.03 |
| Nov | 1.54 | 1.60 | -0.06 |
| Dec | 1.08 | 1.21 | -0.13 |
32.17 | 32.35 | -0.18 |