| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.46 | 0.41 | 0.05 |
| Feb | 0.67 | 0.56 | 0.11 |
| Mar | 1.23 | 1.10 | 0.13 |
| Apr | 2.15 | 2.00 | 0.15 |
| May | 2.71 | 3.01 | -0.30 |
| Jun | 2.29 | 2.42 | -0.13 |
| Jul | 1.75 | 1.95 | -0.20 |
| Aug | 1.50 | 1.75 | -0.25 |
| Sep | 1.52 | 1.50 | 0.02 |
| Oct | 1.33 | 1.34 | -0.01 |
| Nov | 0.70 | 0.69 | 0.01 |
| Dec | 0.71 | 0.58 | 0.13 |
17.02 | 17.31 | -0.29 |