| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.38 | 0.40 | -0.02 |
| Feb | 0.52 | 0.43 | 0.09 |
| Mar | 0.83 | 0.85 | -0.02 |
| Apr | 1.75 | 1.80 | -0.05 |
| May | 2.72 | 2.73 | -0.01 |
| Jun | 2.63 | 2.35 | 0.28 |
| Jul | 3.19 | 3.21 | -0.02 |
| Aug | 2.45 | 2.78 | -0.33 |
| Sep | 1.29 | 1.18 | 0.11 |
| Oct | 1.24 | 1.26 | -0.02 |
| Nov | 0.54 | 0.50 | 0.04 |
| Dec | 0.41 | 0.42 | -0.01 |
17.95 | 17.91 | 0.04 |