| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.20 | 3.48 | -0.28 |
| Feb | 2.73 | 2.90 | -0.17 |
| Mar | 4.26 | 4.37 | -0.11 |
| Apr | 3.51 | 3.54 | -0.03 |
| May | 3.30 | 3.46 | -0.16 |
| Jun | 4.26 | 4.34 | -0.08 |
| Jul | 4.65 | 4.72 | -0.07 |
| Aug | 4.65 | 4.71 | -0.06 |
| Sep | 4.00 | 4.10 | -0.10 |
| Oct | 3.88 | 3.99 | -0.11 |
| Nov | 3.19 | 3.23 | -0.04 |
| Dec | 4.10 | 4.35 | -0.25 |
45.73 | 47.19 | -1.46 |