| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.83 | 3.86 | -0.03 |
| Feb | 3.34 | 3.42 | -0.08 |
| Mar | 4.39 | 4.50 | -0.11 |
| Apr | 4.26 | 4.29 | -0.03 |
| May | 4.11 | 4.14 | -0.03 |
| Jun | 4.81 | 4.82 | -0.01 |
| Jul | 4.51 | 4.36 | 0.15 |
| Aug | 4.69 | 4.80 | -0.11 |
| Sep | 4.93 | 5.03 | -0.10 |
| Oct | 5.35 | 5.50 | -0.15 |
| Nov | 4.07 | 4.13 | -0.06 |
| Dec | 4.77 | 4.95 | -0.18 |
53.06 | 53.80 | -0.74 |