| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.35 | 0.34 | 0.01 |
| Feb | 0.44 | 0.52 | -0.08 |
| Mar | 0.87 | 0.96 | -0.09 |
| Apr | 1.64 | 1.58 | 0.06 |
| May | 2.52 | 2.45 | 0.07 |
| Jun | 2.79 | 2.68 | 0.11 |
| Jul | 3.35 | 3.47 | -0.12 |
| Aug | 2.80 | 2.77 | 0.03 |
| Sep | 1.41 | 1.47 | -0.06 |
| Oct | 1.27 | 1.33 | -0.06 |
| Nov | 0.56 | 0.57 | -0.01 |
| Dec | 0.42 | 0.48 | -0.06 |
18.42 | 18.62 | -0.20 |