| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.93 | 4.14 | -0.21 |
| Feb | 3.38 | 3.58 | -0.20 |
| Mar | 4.42 | 4.50 | -0.08 |
| Apr | 4.26 | 4.24 | 0.02 |
| May | 3.76 | 3.96 | -0.20 |
| Jun | 4.23 | 4.36 | -0.13 |
| Jul | 4.22 | 4.26 | -0.04 |
| Aug | 4.39 | 4.46 | -0.07 |
| Sep | 3.91 | 4.10 | -0.19 |
| Oct | 3.39 | 3.59 | -0.20 |
| Nov | 3.74 | 3.76 | -0.02 |
| Dec | 4.31 | 4.46 | -0.15 |
47.94 | 49.41 | -1.47 |