| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.72 | 0.81 | -0.09 |
| Feb | 0.76 | 0.86 | -0.10 |
| Mar | 1.51 | 1.49 | 0.02 |
| Apr | 2.93 | 2.86 | 0.07 |
| May | 4.16 | 4.23 | -0.07 |
| Jun | 4.77 | 4.50 | 0.27 |
| Jul | 3.98 | 4.00 | -0.02 |
| Aug | 4.22 | 4.35 | -0.13 |
| Sep | 3.37 | 3.19 | 0.18 |
| Oct | 2.56 | 2.50 | 0.06 |
| Nov | 1.48 | 1.50 | -0.02 |
| Dec | 1.06 | 1.17 | -0.11 |
31.52 | 31.46 | 0.06 |