| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.81 | 1.79 | 0.02 |
| Feb | 1.64 | 1.73 | -0.09 |
| Mar | 2.45 | 2.39 | 0.06 |
| Apr | 2.52 | 2.60 | -0.08 |
| May | 3.92 | 3.72 | 0.20 |
| Jun | 3.56 | 3.25 | 0.31 |
| Jul | 2.21 | 2.38 | -0.17 |
| Aug | 2.47 | 2.64 | -0.17 |
| Sep | 3.56 | 3.43 | 0.13 |
| Oct | 3.00 | 3.03 | -0.03 |
| Nov | 2.22 | 2.39 | -0.17 |
| Dec | 1.95 | 2.15 | -0.20 |
31.31 | 31.50 | -0.19 |