| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.80 | 0.97 | -0.17 |
| Feb | 0.80 | 0.97 | -0.17 |
| Mar | 1.63 | 1.76 | -0.13 |
| Apr | 2.92 | 3.00 | -0.08 |
| May | 4.12 | 4.27 | -0.15 |
| Jun | 4.70 | 4.93 | -0.23 |
| Jul | 4.18 | 4.37 | -0.19 |
| Aug | 4.54 | 4.44 | 0.10 |
| Sep | 3.33 | 3.30 | 0.03 |
| Oct | 2.66 | 2.79 | -0.13 |
| Nov | 1.56 | 1.69 | -0.13 |
| Dec | 1.14 | 1.33 | -0.19 |
32.38 | 33.82 | -1.44 |