| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.85 | 1.69 | 0.16 |
| Feb | 1.81 | 1.64 | 0.17 |
| Mar | 1.56 | 1.53 | 0.03 |
| Apr | 1.33 | 1.28 | 0.05 |
| May | 1.28 | 1.17 | 0.11 |
| Jun | 0.57 | 0.52 | 0.05 |
| Jul | 1.56 | 1.33 | 0.23 |
| Aug | 1.90 | 1.70 | 0.20 |
| Sep | 1.95 | 1.83 | 0.12 |
| Oct | 1.65 | 1.61 | 0.04 |
| Nov | 1.47 | 1.40 | 0.07 |
| Dec | 1.58 | 1.48 | 0.10 |
18.51 | 17.18 | 1.33 |