| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.06 | 3.07 | -0.01 |
| Feb | 2.43 | 2.33 | 0.10 |
| Mar | 3.05 | 3.09 | -0.04 |
| Apr | 3.83 | 3.89 | -0.06 |
| May | 4.34 | 4.25 | 0.09 |
| Jun | 4.68 | 4.74 | -0.06 |
| Jul | 4.03 | 4.10 | -0.07 |
| Aug | 3.47 | 3.51 | -0.04 |
| Sep | 3.43 | 3.28 | 0.15 |
| Oct | 3.22 | 2.98 | 0.24 |
| Nov | 3.07 | 2.91 | 0.16 |
| Dec | 3.00 | 3.11 | -0.11 |
41.61 | 41.26 | 0.35 |