| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.46 | 3.50 | -0.04 |
| Feb | 2.92 | 3.11 | -0.19 |
| Mar | 3.49 | 3.53 | -0.04 |
| Apr | 3.79 | 3.93 | -0.14 |
| May | 4.35 | 4.40 | -0.05 |
| Jun | 5.06 | 4.99 | 0.07 |
| Jul | 5.21 | 5.18 | 0.03 |
| Aug | 4.88 | 4.88 | 0.00 |
| Sep | 4.53 | 4.31 | 0.22 |
| Oct | 5.14 | 5.09 | 0.05 |
| Nov | 4.00 | 4.07 | -0.07 |
| Dec | 4.22 | 4.34 | -0.12 |
51.05 | 51.33 | -0.28 |