| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.24 | 3.07 | 0.17 |
| Feb | 3.25 | 3.11 | 0.14 |
| Mar | 4.10 | 3.89 | 0.21 |
| Apr | 4.15 | 4.17 | -0.02 |
| May | 3.69 | 3.54 | 0.15 |
| Jun | 4.19 | 4.00 | 0.19 |
| Jul | 3.86 | 3.69 | 0.17 |
| Aug | 3.60 | 3.60 | 0.00 |
| Sep | 3.87 | 3.73 | 0.14 |
| Oct | 4.71 | 4.59 | 0.12 |
| Nov | 4.03 | 3.82 | 0.21 |
| Dec | 4.27 | 4.23 | 0.04 |
46.96 | 45.44 | 1.52 |