| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.63 | 2.56 | 0.07 |
| Feb | 2.20 | 2.17 | 0.03 |
| Mar | 2.79 | 2.94 | -0.15 |
| Apr | 3.37 | 3.22 | 0.15 |
| May | 3.34 | 3.32 | 0.02 |
| Jun | 4.07 | 4.13 | -0.06 |
| Jul | 4.12 | 3.86 | 0.26 |
| Aug | 3.60 | 3.56 | 0.04 |
| Sep | 3.25 | 3.12 | 0.13 |
| Oct | 3.64 | 3.65 | -0.01 |
| Nov | 3.11 | 2.91 | 0.20 |
| Dec | 3.08 | 3.12 | -0.04 |
39.20 | 38.56 | 0.64 |