| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.65 | 0.69 | -0.04 |
| Feb | 0.64 | 0.71 | -0.07 |
| Mar | 1.18 | 1.27 | -0.09 |
| Apr | 2.08 | 2.22 | -0.14 |
| May | 3.31 | 3.40 | -0.09 |
| Jun | 4.26 | 4.26 | 0.00 |
| Jul | 4.29 | 4.27 | 0.02 |
| Aug | 3.34 | 3.16 | 0.18 |
| Sep | 2.90 | 2.85 | 0.05 |
| Oct | 2.68 | 2.74 | -0.06 |
| Nov | 1.19 | 1.22 | -0.03 |
| Dec | 0.87 | 0.92 | -0.05 |
27.39 | 27.71 | -0.32 |