| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.64 | 2.32 | -0.68 |
| Feb | 1.36 | 1.99 | -0.63 |
| Mar | 1.39 | 1.79 | -0.40 |
| Apr | 1.73 | 2.01 | -0.28 |
| May | 2.20 | 2.64 | -0.44 |
| Jun | 1.68 | 1.85 | -0.17 |
| Jul | 0.92 | 1.15 | -0.23 |
| Aug | 1.13 | 1.20 | -0.07 |
| Sep | 1.40 | 1.54 | -0.14 |
| Oct | 1.61 | 1.91 | -0.30 |
| Nov | 1.47 | 2.00 | -0.53 |
| Dec | 1.59 | 1.87 | -0.28 |
18.12 | 22.27 | -4.15 |