| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.93 | 4.83 | -0.90 |
| Feb | 2.93 | 3.31 | -0.38 |
| Mar | 3.47 | 4.08 | -0.61 |
| Apr | 2.48 | 2.71 | -0.23 |
| May | 1.99 | 2.10 | -0.11 |
| Jun | 1.53 | 1.77 | -0.24 |
| Jul | 0.77 | 0.82 | -0.05 |
| Aug | 0.92 | 0.91 | 0.01 |
| Sep | 1.48 | 1.63 | -0.15 |
| Oct | 3.14 | 3.33 | -0.19 |
| Nov | 4.38 | 5.09 | -0.71 |
| Dec | 4.28 | 4.83 | -0.55 |
31.30 | 35.41 | -4.11 |