| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.79 | 0.73 | 0.06 |
| Feb | 0.90 | 0.80 | 0.10 |
| Mar | 1.49 | 1.32 | 0.17 |
| Apr | 2.70 | 2.80 | -0.10 |
| May | 3.99 | 3.90 | 0.09 |
| Jun | 4.35 | 4.09 | 0.26 |
| Jul | 4.29 | 4.16 | 0.13 |
| Aug | 4.06 | 3.91 | 0.15 |
| Sep | 3.38 | 3.56 | -0.18 |
| Oct | 2.96 | 2.98 | -0.02 |
| Nov | 1.67 | 1.48 | 0.19 |
| Dec | 1.15 | 1.10 | 0.05 |
31.73 | 30.83 | 0.90 |