| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.98 | 1.04 | -0.06 |
| Feb | 0.93 | 1.03 | -0.10 |
| Mar | 1.41 | 1.49 | -0.08 |
| Apr | 2.43 | 2.57 | -0.14 |
| May | 3.15 | 3.28 | -0.13 |
| Jun | 4.26 | 4.32 | -0.06 |
| Jul | 3.87 | 3.80 | 0.07 |
| Aug | 3.43 | 3.51 | -0.08 |
| Sep | 3.26 | 3.46 | -0.20 |
| Oct | 2.92 | 3.04 | -0.12 |
| Nov | 1.81 | 1.99 | -0.18 |
| Dec | 1.35 | 1.54 | -0.19 |
29.80 | 31.07 | -1.27 |