| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.76 | 1.79 | -0.03 |
| Feb | 1.66 | 1.52 | 0.14 |
| Mar | 1.92 | 1.66 | 0.26 |
| Apr | 2.15 | 1.88 | 0.27 |
| May | 2.23 | 2.17 | 0.06 |
| Jun | 1.25 | 1.19 | 0.06 |
| Jul | 0.53 | 0.47 | 0.06 |
| Aug | 0.73 | 0.72 | 0.01 |
| Sep | 1.25 | 1.18 | 0.07 |
| Oct | 1.72 | 1.65 | 0.07 |
| Nov | 1.34 | 1.28 | 0.06 |
| Dec | 1.63 | 1.54 | 0.09 |
18.17 | 17.05 | 1.12 |