| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.42 | 3.57 | -0.15 |
| Feb | 3.27 | 3.32 | -0.05 |
| Mar | 4.45 | 4.60 | -0.15 |
| Apr | 5.13 | 5.13 | 0.00 |
| May | 5.29 | 5.65 | -0.36 |
| Jun | 4.80 | 4.89 | -0.09 |
| Jul | 4.39 | 4.51 | -0.12 |
| Aug | 3.81 | 3.55 | 0.26 |
| Sep | 3.56 | 3.85 | -0.29 |
| Oct | 3.59 | 3.61 | -0.02 |
| Nov | 3.63 | 3.77 | -0.14 |
| Dec | 4.08 | 4.27 | -0.19 |
49.42 | 50.72 | -1.30 |