| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.35 | 4.50 | -0.15 |
| Feb | 3.60 | 3.69 | -0.09 |
| Mar | 4.26 | 4.25 | 0.01 |
| Apr | 4.29 | 4.43 | -0.14 |
| May | 4.08 | 4.42 | -0.34 |
| Jun | 4.45 | 4.64 | -0.19 |
| Jul | 4.39 | 4.98 | -0.59 |
| Aug | 4.62 | 5.23 | -0.61 |
| Sep | 4.31 | 4.32 | -0.01 |
| Oct | 3.56 | 3.51 | 0.05 |
| Nov | 3.82 | 3.83 | -0.01 |
| Dec | 4.25 | 4.67 | -0.42 |
49.98 | 52.47 | -2.49 |