| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.50 | 3.87 | -0.37 |
| Feb | 3.04 | 3.34 | -0.30 |
| Mar | 4.03 | 4.33 | -0.30 |
| Apr | 4.10 | 4.52 | -0.42 |
| May | 3.62 | 3.71 | -0.09 |
| Jun | 4.39 | 4.18 | 0.21 |
| Jul | 4.03 | 4.05 | -0.02 |
| Aug | 3.91 | 3.92 | -0.01 |
| Sep | 4.23 | 4.39 | -0.16 |
| Oct | 5.00 | 4.97 | 0.03 |
| Nov | 3.86 | 3.93 | -0.07 |
| Dec | 4.24 | 4.58 | -0.34 |
47.95 | 49.79 | -1.84 |