| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.29 | 4.05 | 0.24 |
| Feb | 3.51 | 3.27 | 0.24 |
| Mar | 4.26 | 3.95 | 0.31 |
| Apr | 4.33 | 4.04 | 0.29 |
| May | 4.24 | 4.07 | 0.17 |
| Jun | 4.46 | 4.37 | 0.09 |
| Jul | 4.42 | 4.55 | -0.13 |
| Aug | 4.65 | 4.63 | 0.02 |
| Sep | 4.36 | 4.21 | 0.15 |
| Oct | 3.62 | 3.17 | 0.45 |
| Nov | 3.80 | 3.43 | 0.37 |
| Dec | 4.26 | 4.02 | 0.24 |
50.20 | 47.76 | 2.44 |