| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.90 | 0.94 | -0.04 |
| Feb | 0.86 | 0.95 | -0.09 |
| Mar | 1.36 | 1.44 | -0.08 |
| Apr | 2.41 | 2.48 | -0.07 |
| May | 3.26 | 3.42 | -0.16 |
| Jun | 4.51 | 4.54 | -0.03 |
| Jul | 4.11 | 4.22 | -0.11 |
| Aug | 3.68 | 3.89 | -0.21 |
| Sep | 3.21 | 3.41 | -0.20 |
| Oct | 2.97 | 3.12 | -0.15 |
| Nov | 1.67 | 1.78 | -0.11 |
| Dec | 1.28 | 1.48 | -0.20 |
30.22 | 31.67 | -1.45 |