| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.16 | 3.38 | -0.22 |
| Feb | 2.67 | 2.98 | -0.31 |
| Mar | 3.54 | 3.87 | -0.33 |
| Apr | 3.64 | 3.89 | -0.25 |
| May | 3.50 | 3.60 | -0.10 |
| Jun | 4.15 | 4.44 | -0.29 |
| Jul | 4.04 | 4.10 | -0.06 |
| Aug | 4.12 | 4.19 | -0.07 |
| Sep | 4.17 | 4.35 | -0.18 |
| Oct | 4.46 | 4.65 | -0.19 |
| Nov | 3.35 | 3.60 | -0.25 |
| Dec | 3.88 | 4.24 | -0.36 |
44.68 | 47.29 | -2.61 |