| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.60 | 1.63 | -0.03 |
| Feb | 1.67 | 1.66 | 0.01 |
| Mar | 2.32 | 2.21 | 0.11 |
| Apr | 3.75 | 3.60 | 0.15 |
| May | 4.26 | 4.33 | -0.07 |
| Jun | 5.14 | 5.12 | 0.02 |
| Jul | 3.85 | 3.89 | -0.04 |
| Aug | 3.98 | 3.91 | 0.07 |
| Sep | 3.66 | 3.60 | 0.06 |
| Oct | 2.86 | 2.82 | 0.04 |
| Nov | 2.37 | 2.13 | 0.24 |
| Dec | 1.96 | 1.95 | 0.01 |
37.42 | 36.85 | 0.57 |