| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.28 | 4.74 | -0.46 |
| Feb | 3.26 | 3.50 | -0.24 |
| Mar | 3.43 | 3.58 | -0.15 |
| Apr | 3.98 | 4.08 | -0.10 |
| May | 4.24 | 4.44 | -0.20 |
| Jun | 4.68 | 4.61 | 0.07 |
| Jul | 4.19 | 4.28 | -0.09 |
| Aug | 4.16 | 4.33 | -0.17 |
| Sep | 4.12 | 4.74 | -0.62 |
| Oct | 5.36 | 5.77 | -0.41 |
| Nov | 4.40 | 4.85 | -0.45 |
| Dec | 4.64 | 5.15 | -0.51 |
50.74 | 54.07 | -3.33 |