| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.51 | 3.65 | -0.14 |
| Feb | 2.76 | 2.92 | -0.16 |
| Mar | 3.77 | 3.88 | -0.11 |
| Apr | 3.92 | 4.04 | -0.12 |
| May | 4.04 | 4.14 | -0.10 |
| Jun | 4.79 | 4.86 | -0.07 |
| Jul | 4.66 | 4.92 | -0.26 |
| Aug | 4.79 | 4.81 | -0.02 |
| Sep | 4.74 | 4.98 | -0.24 |
| Oct | 4.54 | 4.88 | -0.34 |
| Nov | 3.43 | 3.57 | -0.14 |
| Dec | 4.23 | 4.39 | -0.16 |
49.18 | 51.04 | -1.86 |