| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.73 | 4.12 | -0.39 |
| Feb | 3.29 | 3.70 | -0.41 |
| Mar | 4.03 | 4.30 | -0.27 |
| Apr | 4.38 | 4.47 | -0.09 |
| May | 4.15 | 4.66 | -0.51 |
| Jun | 4.78 | 4.99 | -0.21 |
| Jul | 4.50 | 5.00 | -0.50 |
| Aug | 4.32 | 4.63 | -0.31 |
| Sep | 4.50 | 4.69 | -0.19 |
| Oct | 5.13 | 5.73 | -0.60 |
| Nov | 3.90 | 4.29 | -0.39 |
| Dec | 4.51 | 5.06 | -0.55 |
51.22 | 55.64 | -4.42 |