| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.61 | 4.06 | -0.45 |
| Feb | 3.57 | 3.68 | -0.11 |
| Mar | 3.70 | 3.73 | -0.03 |
| Apr | 3.14 | 3.32 | -0.18 |
| May | 3.46 | 3.65 | -0.19 |
| Jun | 5.07 | 4.91 | 0.16 |
| Jul | 5.30 | 5.23 | 0.07 |
| Aug | 5.00 | 4.82 | 0.18 |
| Sep | 4.31 | 4.36 | -0.05 |
| Oct | 3.24 | 3.39 | -0.15 |
| Nov | 2.84 | 2.96 | -0.12 |
| Dec | 3.66 | 3.82 | -0.16 |
46.90 | 47.93 | -1.03 |