| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.37 | 0.34 | 0.03 |
| Feb | 0.45 | 0.50 | -0.05 |
| Mar | 0.84 | 0.95 | -0.11 |
| Apr | 1.86 | 1.84 | 0.02 |
| May | 2.67 | 2.52 | 0.15 |
| Jun | 2.68 | 2.67 | 0.01 |
| Jul | 3.24 | 3.09 | 0.15 |
| Aug | 2.74 | 2.69 | 0.05 |
| Sep | 1.27 | 1.26 | 0.01 |
| Oct | 1.24 | 1.36 | -0.12 |
| Nov | 0.56 | 0.52 | 0.04 |
| Dec | 0.41 | 0.46 | -0.05 |
18.33 | 18.20 | 0.13 |