| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.34 | 3.60 | -0.26 |
| Feb | 3.00 | 3.13 | -0.13 |
| Mar | 3.73 | 4.00 | -0.27 |
| Apr | 3.72 | 4.05 | -0.33 |
| May | 4.52 | 4.59 | -0.07 |
| Jun | 4.37 | 4.57 | -0.20 |
| Jul | 4.29 | 4.21 | 0.08 |
| Aug | 4.05 | 3.91 | 0.14 |
| Sep | 3.80 | 3.94 | -0.14 |
| Oct | 3.29 | 3.19 | 0.10 |
| Nov | 2.88 | 3.19 | -0.31 |
| Dec | 3.45 | 3.72 | -0.27 |
44.44 | 46.10 | -1.66 |