| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.81 | 0.83 | -0.02 |
| Feb | 1.01 | 1.03 | -0.02 |
| Mar | 2.01 | 2.28 | -0.27 |
| Apr | 2.67 | 2.95 | -0.28 |
| May | 2.51 | 2.80 | -0.29 |
| Jun | 1.85 | 1.95 | -0.10 |
| Jul | 2.45 | 2.50 | -0.05 |
| Aug | 2.39 | 2.60 | -0.21 |
| Sep | 1.60 | 1.74 | -0.14 |
| Oct | 1.35 | 1.45 | -0.10 |
| Nov | 0.98 | 1.08 | -0.10 |
| Dec | 0.85 | 0.97 | -0.12 |
20.48 | 22.18 | -1.70 |