| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.68 | 3.66 | 0.02 |
| Feb | 3.25 | 3.10 | 0.15 |
| Mar | 3.86 | 3.81 | 0.05 |
| Apr | 3.57 | 3.41 | 0.16 |
| May | 4.17 | 4.10 | 0.07 |
| Jun | 5.01 | 5.08 | -0.07 |
| Jul | 6.08 | 5.88 | 0.20 |
| Aug | 6.26 | 6.03 | 0.23 |
| Sep | 6.65 | 6.37 | 0.28 |
| Oct | 3.46 | 3.70 | -0.24 |
| Nov | 3.38 | 3.44 | -0.06 |
| Dec | 3.45 | 3.44 | 0.01 |
52.82 | 52.02 | 0.80 |