| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.71 | 1.81 | -0.10 |
| Feb | 1.62 | 1.75 | -0.13 |
| Mar | 1.48 | 1.53 | -0.05 |
| Apr | 1.31 | 1.29 | 0.02 |
| May | 1.24 | 1.43 | -0.19 |
| Jun | 0.66 | 0.70 | -0.04 |
| Jul | 1.90 | 2.07 | -0.17 |
| Aug | 2.27 | 2.52 | -0.25 |
| Sep | 1.97 | 2.08 | -0.11 |
| Oct | 1.60 | 1.74 | -0.14 |
| Nov | 1.45 | 1.58 | -0.13 |
| Dec | 1.65 | 1.78 | -0.13 |
18.86 | 20.28 | -1.42 |