| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.30 | 3.54 | -0.24 |
| Feb | 2.74 | 2.95 | -0.21 |
| Mar | 3.95 | 4.11 | -0.16 |
| Apr | 4.04 | 3.91 | 0.13 |
| May | 3.90 | 3.98 | -0.08 |
| Jun | 4.46 | 4.83 | -0.37 |
| Jul | 4.58 | 4.48 | 0.10 |
| Aug | 4.30 | 4.54 | -0.24 |
| Sep | 4.54 | 4.59 | -0.05 |
| Oct | 4.46 | 4.58 | -0.12 |
| Nov | 3.62 | 3.76 | -0.14 |
| Dec | 3.97 | 4.37 | -0.40 |
47.86 | 49.64 | -1.78 |