| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.43 | 1.38 | 0.05 |
| Feb | 1.73 | 1.66 | 0.07 |
| Mar | 1.33 | 1.38 | -0.05 |
| Apr | 0.76 | 0.86 | -0.10 |
| May | 0.44 | 0.45 | -0.01 |
| Jun | 0.20 | 0.17 | 0.03 |
| Jul | 0.66 | 0.55 | 0.11 |
| Aug | 0.90 | 0.87 | 0.03 |
| Sep | 0.85 | 0.84 | 0.01 |
| Oct | 0.95 | 0.87 | 0.08 |
| Nov | 0.82 | 0.80 | 0.02 |
| Dec | 1.15 | 1.13 | 0.02 |
11.22 | 10.96 | 0.26 |