| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.47 | 3.63 | -0.16 |
| Feb | 2.75 | 2.89 | -0.14 |
| Mar | 4.11 | 4.31 | -0.20 |
| Apr | 3.73 | 3.70 | 0.03 |
| May | 3.91 | 4.09 | -0.18 |
| Jun | 4.26 | 4.40 | -0.14 |
| Jul | 4.88 | 4.92 | -0.04 |
| Aug | 4.46 | 4.81 | -0.35 |
| Sep | 4.31 | 4.43 | -0.12 |
| Oct | 4.07 | 4.10 | -0.03 |
| Nov | 3.31 | 3.36 | -0.05 |
| Dec | 4.23 | 4.42 | -0.19 |
47.49 | 49.06 | -1.57 |