| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.75 | 1.72 | 0.03 |
| Feb | 1.71 | 1.74 | -0.03 |
| Mar | 2.18 | 2.26 | -0.08 |
| Apr | 3.62 | 3.49 | 0.13 |
| May | 4.49 | 4.73 | -0.24 |
| Jun | 4.77 | 4.59 | 0.18 |
| Jul | 3.84 | 3.78 | 0.06 |
| Aug | 3.91 | 3.89 | 0.02 |
| Sep | 3.43 | 3.35 | 0.08 |
| Oct | 3.10 | 2.98 | 0.12 |
| Nov | 2.46 | 2.34 | 0.12 |
| Dec | 1.93 | 1.99 | -0.06 |
37.19 | 36.86 | 0.33 |