| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.33 | 1.50 | -0.17 |
| Feb | 1.29 | 1.52 | -0.23 |
| Mar | 1.29 | 1.30 | -0.01 |
| Apr | 1.50 | 1.66 | -0.16 |
| May | 1.24 | 1.44 | -0.20 |
| Jun | 0.76 | 0.74 | 0.02 |
| Jul | 1.68 | 1.56 | 0.12 |
| Aug | 1.80 | 1.57 | 0.23 |
| Sep | 1.45 | 1.24 | 0.21 |
| Oct | 1.16 | 1.02 | 0.14 |
| Nov | 1.05 | 1.04 | 0.01 |
| Dec | 1.19 | 1.35 | -0.16 |
15.74 | 15.94 | -0.20 |