| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.82 | 1.43 | 0.39 |
| Feb | 1.75 | 1.50 | 0.25 |
| Mar | 1.98 | 1.90 | 0.08 |
| Apr | 2.42 | 1.96 | 0.46 |
| May | 1.83 | 1.64 | 0.19 |
| Jun | 1.16 | 1.12 | 0.04 |
| Jul | 1.88 | 1.69 | 0.19 |
| Aug | 2.03 | 1.81 | 0.22 |
| Sep | 1.56 | 1.50 | 0.06 |
| Oct | 1.42 | 1.26 | 0.16 |
| Nov | 1.58 | 1.29 | 0.29 |
| Dec | 1.64 | 1.50 | 0.14 |
21.07 | 18.60 | 2.47 |