| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.59 | 1.59 | 0.00 |
| Feb | 1.22 | 1.27 | -0.05 |
| Mar | 1.86 | 1.77 | 0.09 |
| Apr | 3.20 | 3.26 | -0.06 |
| May | 3.48 | 3.40 | 0.08 |
| Jun | 4.20 | 4.21 | -0.01 |
| Jul | 3.47 | 3.52 | -0.05 |
| Aug | 3.39 | 3.43 | -0.04 |
| Sep | 2.71 | 2.67 | 0.04 |
| Oct | 2.95 | 2.86 | 0.09 |
| Nov | 2.13 | 2.03 | 0.10 |
| Dec | 1.70 | 1.78 | -0.08 |
31.90 | 31.79 | 0.11 |