| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.06 | 3.19 | -0.13 |
| Feb | 2.42 | 2.49 | -0.07 |
| Mar | 3.49 | 3.48 | 0.01 |
| Apr | 4.38 | 4.32 | 0.06 |
| May | 4.44 | 4.46 | -0.02 |
| Jun | 4.76 | 4.79 | -0.03 |
| Jul | 4.05 | 3.98 | 0.07 |
| Aug | 3.21 | 2.91 | 0.30 |
| Sep | 3.02 | 3.12 | -0.10 |
| Oct | 3.09 | 3.08 | 0.01 |
| Nov | 2.99 | 2.97 | 0.02 |
| Dec | 3.15 | 3.18 | -0.03 |
42.06 | 41.97 | 0.09 |