| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.20 | 3.30 | -0.10 |
| Feb | 2.83 | 2.90 | -0.07 |
| Mar | 4.11 | 4.38 | -0.27 |
| Apr | 3.68 | 3.70 | -0.02 |
| May | 4.23 | 4.34 | -0.11 |
| Jun | 4.24 | 4.37 | -0.13 |
| Jul | 4.65 | 4.63 | 0.02 |
| Aug | 4.41 | 4.15 | 0.26 |
| Sep | 4.64 | 4.80 | -0.16 |
| Oct | 4.24 | 4.51 | -0.27 |
| Nov | 3.56 | 3.46 | 0.10 |
| Dec | 3.79 | 4.17 | -0.38 |
47.58 | 48.71 | -1.13 |