| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.50 | 3.56 | -0.06 |
| Feb | 2.89 | 2.90 | -0.01 |
| Mar | 4.05 | 3.98 | 0.07 |
| Apr | 3.63 | 3.69 | -0.06 |
| May | 3.75 | 3.93 | -0.18 |
| Jun | 4.47 | 4.26 | 0.21 |
| Jul | 5.29 | 5.35 | -0.06 |
| Aug | 5.03 | 5.31 | -0.28 |
| Sep | 4.95 | 5.05 | -0.10 |
| Oct | 3.95 | 4.34 | -0.39 |
| Nov | 3.07 | 3.12 | -0.05 |
| Dec | 3.60 | 3.64 | -0.04 |
48.18 | 49.13 | -0.95 |