| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.44 | 2.43 | 0.01 |
| Feb | 2.20 | 2.22 | -0.02 |
| Mar | 3.32 | 3.19 | 0.13 |
| Apr | 4.61 | 4.42 | 0.19 |
| May | 4.92 | 5.03 | -0.11 |
| Jun | 4.37 | 4.52 | -0.15 |
| Jul | 3.95 | 3.91 | 0.04 |
| Aug | 3.64 | 3.44 | 0.20 |
| Sep | 3.42 | 3.40 | 0.02 |
| Oct | 3.20 | 3.25 | -0.05 |
| Nov | 3.41 | 3.35 | 0.06 |
| Dec | 2.55 | 2.49 | 0.06 |
42.03 | 41.65 | 0.38 |