| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.00 | 3.08 | -0.08 |
| Feb | 2.43 | 2.40 | 0.03 |
| Mar | 3.28 | 3.32 | -0.04 |
| Apr | 3.88 | 3.79 | 0.09 |
| May | 4.07 | 4.14 | -0.07 |
| Jun | 4.62 | 4.66 | -0.04 |
| Jul | 4.12 | 4.10 | 0.02 |
| Aug | 3.52 | 3.51 | 0.01 |
| Sep | 3.26 | 3.33 | -0.07 |
| Oct | 2.91 | 2.85 | 0.06 |
| Nov | 2.88 | 2.89 | -0.01 |
| Dec | 2.99 | 2.98 | 0.01 |
40.96 | 41.05 | -0.09 |