| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.49 | 0.62 | -0.13 |
| Feb | 0.70 | 0.78 | -0.08 |
| Mar | 1.20 | 1.35 | -0.15 |
| Apr | 2.34 | 2.53 | -0.19 |
| May | 4.24 | 4.49 | -0.25 |
| Jun | 3.29 | 3.43 | -0.14 |
| Jul | 2.49 | 2.49 | 0.00 |
| Aug | 1.85 | 1.93 | -0.08 |
| Sep | 1.48 | 1.43 | 0.05 |
| Oct | 1.78 | 2.05 | -0.27 |
| Nov | 0.75 | 0.88 | -0.13 |
| Dec | 0.53 | 0.64 | -0.11 |
21.14 | 22.62 | -1.48 |