| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.96 | 1.00 | -0.04 |
| Feb | 1.02 | 1.11 | -0.09 |
| Mar | 1.65 | 1.76 | -0.11 |
| Apr | 2.92 | 3.07 | -0.15 |
| May | 4.03 | 4.14 | -0.11 |
| Jun | 4.43 | 4.51 | -0.08 |
| Jul | 4.33 | 4.55 | -0.22 |
| Aug | 4.05 | 4.12 | -0.07 |
| Sep | 3.80 | 3.85 | -0.05 |
| Oct | 3.25 | 3.49 | -0.24 |
| Nov | 1.89 | 1.95 | -0.06 |
| Dec | 1.41 | 1.46 | -0.05 |
33.74 | 35.01 | -1.27 |