| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.90 | 3.96 | -0.06 |
| Feb | 3.50 | 3.66 | -0.16 |
| Mar | 4.23 | 4.30 | -0.07 |
| Apr | 3.32 | 3.32 | 0.00 |
| May | 3.35 | 3.29 | 0.06 |
| Jun | 4.02 | 4.07 | -0.05 |
| Jul | 3.86 | 3.82 | 0.04 |
| Aug | 4.03 | 4.19 | -0.16 |
| Sep | 3.68 | 3.71 | -0.03 |
| Oct | 3.29 | 3.27 | 0.02 |
| Nov | 3.44 | 3.46 | -0.02 |
| Dec | 4.19 | 4.21 | -0.02 |
44.81 | 45.26 | -0.45 |