| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.38 | 0.39 | -0.01 |
| Feb | 0.49 | 0.57 | -0.08 |
| Mar | 1.00 | 1.02 | -0.02 |
| Apr | 2.05 | 2.30 | -0.25 |
| May | 3.02 | 2.95 | 0.07 |
| Jun | 3.11 | 3.19 | -0.08 |
| Jul | 3.12 | 3.13 | -0.01 |
| Aug | 2.58 | 2.45 | 0.13 |
| Sep | 1.42 | 1.45 | -0.03 |
| Oct | 1.50 | 1.61 | -0.11 |
| Nov | 0.55 | 0.63 | -0.08 |
| Dec | 0.43 | 0.51 | -0.08 |
19.65 | 20.20 | -0.55 |