| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.43 | 0.40 | 0.03 |
| Feb | 0.57 | 0.56 | 0.01 |
| Mar | 1.10 | 1.08 | 0.02 |
| Apr | 2.18 | 2.20 | -0.02 |
| May | 3.21 | 3.19 | 0.02 |
| Jun | 3.55 | 3.58 | -0.03 |
| Jul | 2.38 | 2.72 | -0.34 |
| Aug | 2.06 | 2.04 | 0.02 |
| Sep | 1.53 | 1.57 | -0.04 |
| Oct | 1.45 | 1.52 | -0.07 |
| Nov | 0.63 | 0.63 | 0.00 |
| Dec | 0.48 | 0.49 | -0.01 |
19.57 | 19.98 | -0.41 |