| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.04 | 4.14 | -0.10 |
| Feb | 4.01 | 3.89 | 0.12 |
| Mar | 4.32 | 4.37 | -0.05 |
| Apr | 4.01 | 4.12 | -0.11 |
| May | 4.50 | 4.65 | -0.15 |
| Jun | 4.09 | 4.29 | -0.20 |
| Jul | 2.85 | 2.98 | -0.13 |
| Aug | 2.96 | 3.31 | -0.35 |
| Sep | 3.49 | 3.43 | 0.06 |
| Oct | 4.23 | 4.21 | 0.02 |
| Nov | 3.76 | 3.93 | -0.17 |
| Dec | 4.51 | 4.59 | -0.08 |
46.77 | 47.91 | -1.14 |