| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.41 | 0.56 | -0.15 |
| Feb | 0.55 | 0.58 | -0.03 |
| Mar | 0.83 | 0.78 | 0.05 |
| Apr | 1.12 | 1.13 | -0.01 |
| May | 1.37 | 1.49 | -0.12 |
| Jun | 1.04 | 1.00 | 0.04 |
| Jul | 1.09 | 0.95 | 0.14 |
| Aug | 1.16 | 1.02 | 0.14 |
| Sep | 1.12 | 1.17 | -0.05 |
| Oct | 1.05 | 1.13 | -0.08 |
| Nov | 0.56 | 0.69 | -0.13 |
| Dec | 0.44 | 0.54 | -0.10 |
10.74 | 11.04 | -0.30 |