| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.57 | 3.50 | 0.07 |
| Feb | 3.37 | 3.20 | 0.17 |
| Mar | 4.16 | 4.05 | 0.11 |
| Apr | 4.17 | 3.84 | 0.33 |
| May | 3.98 | 3.79 | 0.19 |
| Jun | 4.49 | 4.42 | 0.07 |
| Jul | 4.22 | 4.04 | 0.18 |
| Aug | 4.15 | 4.09 | 0.06 |
| Sep | 4.29 | 4.08 | 0.21 |
| Oct | 5.34 | 5.04 | 0.30 |
| Nov | 4.01 | 3.76 | 0.25 |
| Dec | 4.41 | 4.38 | 0.03 |
50.16 | 48.19 | 1.97 |