| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.38 | 2.59 | -0.21 |
| Feb | 2.02 | 2.22 | -0.20 |
| Mar | 2.34 | 2.43 | -0.09 |
| Apr | 3.58 | 3.61 | -0.03 |
| May | 4.22 | 4.15 | 0.07 |
| Jun | 4.34 | 4.26 | 0.08 |
| Jul | 4.07 | 4.15 | -0.08 |
| Aug | 4.16 | 4.16 | 0.00 |
| Sep | 3.30 | 3.38 | -0.08 |
| Oct | 3.68 | 3.93 | -0.25 |
| Nov | 2.77 | 2.98 | -0.21 |
| Dec | 2.36 | 2.47 | -0.11 |
39.22 | 40.33 | -1.11 |