| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.64 | 0.67 | -0.03 |
| Feb | 0.65 | 0.69 | -0.04 |
| Mar | 1.24 | 1.29 | -0.05 |
| Apr | 2.16 | 2.26 | -0.10 |
| May | 3.38 | 3.42 | -0.04 |
| Jun | 4.23 | 4.27 | -0.04 |
| Jul | 4.34 | 4.37 | -0.03 |
| Aug | 3.40 | 3.25 | 0.15 |
| Sep | 2.90 | 2.86 | 0.04 |
| Oct | 2.67 | 2.71 | -0.04 |
| Nov | 1.24 | 1.24 | 0.00 |
| Dec | 0.89 | 0.92 | -0.03 |
27.74 | 27.95 | -0.21 |