| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.87 | 0.83 | 0.04 |
| Feb | 0.94 | 0.88 | 0.06 |
| Mar | 1.79 | 1.68 | 0.11 |
| Apr | 3.16 | 2.92 | 0.24 |
| May | 4.39 | 4.22 | 0.17 |
| Jun | 4.94 | 5.00 | -0.06 |
| Jul | 4.32 | 4.09 | 0.23 |
| Aug | 4.43 | 4.43 | 0.00 |
| Sep | 3.43 | 3.40 | 0.03 |
| Oct | 2.55 | 2.49 | 0.06 |
| Nov | 1.62 | 1.53 | 0.09 |
| Dec | 1.24 | 1.20 | 0.04 |
33.68 | 32.67 | 1.01 |