| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.02 | 4.37 | -0.35 |
| Feb | 3.18 | 3.32 | -0.14 |
| Mar | 4.18 | 4.30 | -0.12 |
| Apr | 4.44 | 4.77 | -0.33 |
| May | 4.51 | 4.67 | -0.16 |
| Jun | 4.51 | 4.52 | -0.01 |
| Jul | 4.38 | 4.47 | -0.09 |
| Aug | 4.88 | 5.14 | -0.26 |
| Sep | 4.24 | 4.13 | 0.11 |
| Oct | 3.66 | 3.76 | -0.10 |
| Nov | 3.33 | 3.33 | 0.00 |
| Dec | 4.13 | 4.36 | -0.23 |
49.46 | 51.14 | -1.68 |