| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.64 | 3.83 | -0.19 |
| Feb | 4.18 | 4.38 | -0.20 |
| Mar | 4.65 | 4.85 | -0.20 |
| Apr | 4.99 | 4.95 | 0.04 |
| May | 5.20 | 5.39 | -0.19 |
| Jun | 4.62 | 4.47 | 0.15 |
| Jul | 4.56 | 4.82 | -0.26 |
| Aug | 3.63 | 3.45 | 0.18 |
| Sep | 3.46 | 3.59 | -0.13 |
| Oct | 3.79 | 3.98 | -0.19 |
| Nov | 3.91 | 3.99 | -0.08 |
| Dec | 4.59 | 4.80 | -0.21 |
51.22 | 52.50 | -1.28 |