| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.47 | 3.49 | -0.02 |
| Feb | 2.70 | 2.61 | 0.09 |
| Mar | 4.16 | 4.23 | -0.07 |
| Apr | 3.59 | 3.60 | -0.01 |
| May | 3.88 | 3.94 | -0.06 |
| Jun | 4.29 | 4.39 | -0.10 |
| Jul | 4.94 | 4.85 | 0.09 |
| Aug | 4.27 | 4.43 | -0.16 |
| Sep | 4.03 | 4.06 | -0.03 |
| Oct | 4.08 | 3.91 | 0.17 |
| Nov | 3.26 | 3.24 | 0.02 |
| Dec | 4.21 | 4.23 | -0.02 |
46.88 | 46.98 | -0.10 |