| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.06 | 3.16 | -0.10 |
| Feb | 2.43 | 2.40 | 0.03 |
| Mar | 3.48 | 3.50 | -0.02 |
| Apr | 4.29 | 4.25 | 0.04 |
| May | 4.50 | 4.50 | 0.00 |
| Jun | 4.52 | 4.57 | -0.05 |
| Jul | 4.09 | 4.13 | -0.04 |
| Aug | 3.24 | 3.13 | 0.11 |
| Sep | 3.07 | 2.98 | 0.09 |
| Oct | 3.01 | 2.92 | 0.09 |
| Nov | 3.01 | 2.97 | 0.04 |
| Dec | 3.12 | 3.08 | 0.04 |
41.82 | 41.59 | 0.23 |