| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.45 | 3.46 | -0.01 |
| Feb | 2.90 | 2.81 | 0.09 |
| Mar | 3.35 | 3.33 | 0.02 |
| Apr | 3.58 | 3.38 | 0.20 |
| May | 4.64 | 4.88 | -0.24 |
| Jun | 4.33 | 4.37 | -0.04 |
| Jul | 2.59 | 2.54 | 0.05 |
| Aug | 3.60 | 3.58 | 0.02 |
| Sep | 3.96 | 3.89 | 0.07 |
| Oct | 4.64 | 4.35 | 0.29 |
| Nov | 4.10 | 4.03 | 0.07 |
| Dec | 3.40 | 3.58 | -0.18 |
44.54 | 44.20 | 0.34 |