| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.98 | 4.00 | -0.02 |
| Feb | 4.49 | 4.34 | 0.15 |
| Mar | 5.05 | 5.11 | -0.06 |
| Apr | 5.27 | 5.23 | 0.04 |
| May | 5.34 | 5.42 | -0.08 |
| Jun | 4.25 | 4.30 | -0.05 |
| Jul | 4.23 | 4.14 | 0.09 |
| Aug | 3.45 | 3.09 | 0.36 |
| Sep | 3.56 | 3.62 | -0.06 |
| Oct | 3.60 | 3.93 | -0.33 |
| Nov | 4.37 | 4.39 | -0.02 |
| Dec | 4.80 | 4.86 | -0.06 |
52.39 | 52.43 | -0.04 |