| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.06 | 3.18 | -0.12 |
| Feb | 2.40 | 2.45 | -0.05 |
| Mar | 3.46 | 3.45 | 0.01 |
| Apr | 4.37 | 4.30 | 0.07 |
| May | 4.39 | 4.49 | -0.10 |
| Jun | 4.69 | 4.61 | 0.08 |
| Jul | 3.98 | 3.89 | 0.09 |
| Aug | 3.15 | 2.92 | 0.23 |
| Sep | 3.03 | 3.03 | 0.00 |
| Oct | 3.04 | 3.07 | -0.03 |
| Nov | 2.99 | 2.96 | 0.03 |
| Dec | 3.14 | 3.20 | -0.06 |
41.70 | 41.55 | 0.15 |