| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.54 | 2.63 | -0.09 |
| Feb | 2.14 | 2.22 | -0.08 |
| Mar | 2.63 | 2.56 | 0.07 |
| Apr | 3.73 | 3.58 | 0.15 |
| May | 4.22 | 4.09 | 0.13 |
| Jun | 4.68 | 4.40 | 0.28 |
| Jul | 4.37 | 4.51 | -0.14 |
| Aug | 4.23 | 4.61 | -0.38 |
| Sep | 3.39 | 3.27 | 0.12 |
| Oct | 3.36 | 3.33 | 0.03 |
| Nov | 2.88 | 2.76 | 0.12 |
| Dec | 2.39 | 2.35 | 0.04 |
40.56 | 40.31 | 0.25 |