| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.27 | 3.31 | -0.04 |
| Feb | 2.90 | 2.98 | -0.08 |
| Mar | 4.04 | 3.99 | 0.05 |
| Apr | 4.41 | 4.55 | -0.14 |
| May | 4.80 | 4.95 | -0.15 |
| Jun | 4.67 | 4.38 | 0.29 |
| Jul | 4.33 | 4.22 | 0.11 |
| Aug | 3.35 | 3.27 | 0.08 |
| Sep | 3.13 | 3.19 | -0.06 |
| Oct | 3.13 | 3.12 | 0.01 |
| Nov | 3.11 | 3.18 | -0.07 |
| Dec | 3.56 | 3.49 | 0.07 |
44.70 | 44.63 | 0.07 |