| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.98 | 1.06 | -0.08 |
| Feb | 0.93 | 1.05 | -0.12 |
| Mar | 1.41 | 1.50 | -0.09 |
| Apr | 2.43 | 2.57 | -0.14 |
| May | 3.15 | 3.29 | -0.14 |
| Jun | 4.26 | 4.39 | -0.13 |
| Jul | 3.87 | 3.85 | 0.02 |
| Aug | 3.43 | 3.50 | -0.07 |
| Sep | 3.26 | 3.48 | -0.22 |
| Oct | 2.92 | 3.04 | -0.12 |
| Nov | 1.81 | 2.00 | -0.19 |
| Dec | 1.35 | 1.56 | -0.21 |
29.80 | 31.29 | -1.49 |