| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 5.65 | 5.52 | 0.13 |
| Feb | 5.05 | 4.94 | 0.11 |
| Mar | 5.29 | 5.21 | 0.08 |
| Apr | 5.31 | 5.13 | 0.18 |
| May | 4.91 | 4.83 | 0.08 |
| Jun | 5.11 | 4.90 | 0.21 |
| Jul | 5.20 | 4.92 | 0.28 |
| Aug | 4.66 | 4.64 | 0.02 |
| Sep | 4.62 | 4.58 | 0.04 |
| Oct | 4.65 | 3.54 | 1.11 |
| Nov | 4.66 | 4.12 | 0.54 |
| Dec | 6.01 | 5.78 | 0.23 |
61.12 | 58.11 | 3.01 |