| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.68 | 3.81 | -0.13 |
| Feb | 3.08 | 3.12 | -0.04 |
| Mar | 3.97 | 3.98 | -0.01 |
| Apr | 3.46 | 3.62 | -0.16 |
| May | 3.84 | 4.02 | -0.18 |
| Jun | 4.63 | 4.66 | -0.03 |
| Jul | 5.53 | 5.48 | 0.05 |
| Aug | 5.38 | 5.51 | -0.13 |
| Sep | 5.18 | 5.20 | -0.02 |
| Oct | 3.89 | 3.99 | -0.10 |
| Nov | 3.26 | 3.50 | -0.24 |
| Dec | 3.46 | 3.65 | -0.19 |
49.36 | 50.54 | -1.18 |