| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.62 | 3.56 | 0.06 |
| Feb | 3.05 | 3.06 | -0.01 |
| Mar | 3.95 | 3.83 | 0.12 |
| Apr | 3.55 | 3.43 | 0.12 |
| May | 3.63 | 3.52 | 0.11 |
| Jun | 4.55 | 4.50 | 0.05 |
| Jul | 5.29 | 5.06 | 0.23 |
| Aug | 5.33 | 5.29 | 0.04 |
| Sep | 6.00 | 5.52 | 0.48 |
| Oct | 3.44 | 3.36 | 0.08 |
| Nov | 3.23 | 3.23 | 0.00 |
| Dec | 3.38 | 3.23 | 0.15 |
49.02 | 47.59 | 1.43 |