| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.32 | 3.83 | -0.51 |
| Feb | 2.89 | 3.31 | -0.42 |
| Mar | 3.91 | 4.34 | -0.43 |
| Apr | 3.90 | 4.47 | -0.57 |
| May | 3.44 | 3.66 | -0.22 |
| Jun | 4.19 | 4.31 | -0.12 |
| Jul | 3.87 | 4.00 | -0.13 |
| Aug | 3.82 | 4.09 | -0.27 |
| Sep | 4.00 | 4.40 | -0.40 |
| Oct | 4.53 | 4.91 | -0.38 |
| Nov | 3.65 | 3.95 | -0.30 |
| Dec | 4.07 | 4.58 | -0.51 |
45.59 | 49.85 | -4.26 |