| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.01 | 0.93 | 0.08 |
| Feb | 1.21 | 1.15 | 0.06 |
| Mar | 1.51 | 1.32 | 0.19 |
| Apr | 1.90 | 1.89 | 0.01 |
| May | 2.79 | 2.65 | 0.14 |
| Jun | 2.91 | 3.17 | -0.26 |
| Jul | 1.35 | 1.45 | -0.10 |
| Aug | 1.29 | 1.28 | 0.01 |
| Sep | 1.39 | 1.52 | -0.13 |
| Oct | 1.53 | 1.48 | 0.05 |
| Nov | 1.33 | 1.33 | 0.00 |
| Dec | 1.15 | 1.00 | 0.15 |
19.37 | 19.17 | 0.20 |