| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.64 | 1.62 | 0.02 |
| Feb | 1.23 | 1.07 | 0.16 |
| Mar | 1.76 | 1.68 | 0.08 |
| Apr | 2.87 | 2.79 | 0.08 |
| May | 3.15 | 3.20 | -0.05 |
| Jun | 3.33 | 3.15 | 0.18 |
| Jul | 3.35 | 2.92 | 0.43 |
| Aug | 3.06 | 2.92 | 0.14 |
| Sep | 3.33 | 3.20 | 0.13 |
| Oct | 3.37 | 3.36 | 0.01 |
| Nov | 2.29 | 2.26 | 0.03 |
| Dec | 1.94 | 1.72 | 0.22 |
31.32 | 29.89 | 1.43 |