| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.42 | 0.40 | 0.02 |
| Feb | 0.58 | 0.57 | 0.01 |
| Mar | 0.95 | 1.02 | -0.07 |
| Apr | 2.02 | 2.04 | -0.02 |
| May | 3.29 | 3.49 | -0.20 |
| Jun | 3.17 | 3.20 | -0.03 |
| Jul | 2.33 | 2.39 | -0.06 |
| Aug | 1.75 | 1.79 | -0.04 |
| Sep | 1.28 | 1.28 | 0.00 |
| Oct | 1.63 | 1.63 | 0.00 |
| Nov | 0.52 | 0.54 | -0.02 |
| Dec | 0.45 | 0.50 | -0.05 |
18.39 | 18.85 | -0.46 |