| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.27 | 4.47 | -0.20 |
| Feb | 3.73 | 3.89 | -0.16 |
| Mar | 4.26 | 4.48 | -0.22 |
| Apr | 3.20 | 3.39 | -0.19 |
| May | 3.38 | 3.42 | -0.04 |
| Jun | 4.91 | 5.28 | -0.37 |
| Jul | 4.99 | 5.05 | -0.06 |
| Aug | 4.91 | 5.09 | -0.18 |
| Sep | 4.00 | 4.23 | -0.23 |
| Oct | 2.90 | 2.89 | 0.01 |
| Nov | 3.08 | 3.21 | -0.13 |
| Dec | 4.25 | 4.27 | -0.02 |
47.88 | 49.67 | -1.79 |