| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.53 | 3.51 | 0.02 |
| Feb | 2.81 | 2.82 | -0.01 |
| Mar | 4.06 | 4.11 | -0.05 |
| Apr | 3.79 | 3.79 | 0.00 |
| May | 4.12 | 3.95 | 0.17 |
| Jun | 4.54 | 4.36 | 0.18 |
| Jul | 4.89 | 4.89 | 0.00 |
| Aug | 4.46 | 4.39 | 0.07 |
| Sep | 4.43 | 4.15 | 0.28 |
| Oct | 4.37 | 4.19 | 0.18 |
| Nov | 3.33 | 3.30 | 0.03 |
| Dec | 4.30 | 4.25 | 0.05 |
48.63 | 47.71 | 0.92 |