| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.25 | 3.65 | -0.40 |
| Feb | 2.73 | 3.10 | -0.37 |
| Mar | 3.06 | 3.42 | -0.36 |
| Apr | 3.48 | 3.55 | -0.07 |
| May | 3.56 | 3.68 | -0.12 |
| Jun | 3.91 | 3.99 | -0.08 |
| Jul | 3.86 | 3.90 | -0.04 |
| Aug | 3.60 | 3.79 | -0.19 |
| Sep | 3.64 | 3.74 | -0.10 |
| Oct | 4.34 | 4.56 | -0.22 |
| Nov | 3.66 | 4.01 | -0.35 |
| Dec | 3.61 | 4.05 | -0.44 |
42.70 | 45.44 | -2.74 |