| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.97 | 3.98 | -0.01 |
| Feb | 4.54 | 4.50 | 0.04 |
| Mar | 5.10 | 5.17 | -0.07 |
| Apr | 5.28 | 5.15 | 0.13 |
| May | 5.37 | 5.48 | -0.11 |
| Jun | 4.23 | 4.38 | -0.15 |
| Jul | 4.29 | 4.10 | 0.19 |
| Aug | 3.47 | 3.13 | 0.34 |
| Sep | 3.60 | 3.65 | -0.05 |
| Oct | 3.57 | 3.92 | -0.35 |
| Nov | 4.41 | 4.38 | 0.03 |
| Dec | 4.92 | 5.01 | -0.09 |
52.75 | 52.85 | -0.10 |