| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.16 | 1.24 | -0.08 |
| Feb | 1.49 | 1.48 | 0.01 |
| Mar | 2.28 | 2.25 | 0.03 |
| Apr | 3.67 | 3.63 | 0.04 |
| May | 4.85 | 4.86 | -0.01 |
| Jun | 5.17 | 5.13 | 0.04 |
| Jul | 4.14 | 4.10 | 0.04 |
| Aug | 4.21 | 4.15 | 0.06 |
| Sep | 3.63 | 3.43 | 0.20 |
| Oct | 2.97 | 2.86 | 0.11 |
| Nov | 2.16 | 2.15 | 0.01 |
| Dec | 1.59 | 1.66 | -0.07 |
37.32 | 36.94 | 0.38 |