| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.27 | 4.37 | -0.10 |
| Feb | 3.90 | 3.97 | -0.07 |
| Mar | 4.63 | 4.64 | -0.01 |
| Apr | 3.83 | 3.86 | -0.03 |
| May | 4.02 | 3.82 | 0.20 |
| Jun | 4.26 | 4.15 | 0.11 |
| Jul | 4.12 | 4.06 | 0.06 |
| Aug | 4.65 | 4.56 | 0.09 |
| Sep | 3.82 | 3.68 | 0.14 |
| Oct | 3.37 | 3.40 | -0.03 |
| Nov | 3.65 | 3.85 | -0.20 |
| Dec | 4.47 | 4.85 | -0.38 |
48.99 | 49.21 | -0.22 |