| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.78 | 2.00 | -0.22 |
| Feb | 1.52 | 1.73 | -0.21 |
| Mar | 1.95 | 2.29 | -0.34 |
| Apr | 2.11 | 2.39 | -0.28 |
| May | 2.27 | 2.65 | -0.38 |
| Jun | 1.29 | 1.28 | 0.01 |
| Jul | 0.56 | 0.60 | -0.04 |
| Aug | 0.76 | 0.76 | 0.00 |
| Sep | 1.31 | 1.42 | -0.11 |
| Oct | 1.74 | 1.92 | -0.18 |
| Nov | 1.34 | 1.55 | -0.21 |
| Dec | 1.62 | 1.90 | -0.28 |
18.25 | 20.49 | -2.24 |