| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.77 | 0.97 | -0.20 |
| Feb | 0.79 | 0.99 | -0.20 |
| Mar | 1.62 | 1.77 | -0.15 |
| Apr | 2.90 | 3.06 | -0.16 |
| May | 4.14 | 4.29 | -0.15 |
| Jun | 4.66 | 4.91 | -0.25 |
| Jul | 4.15 | 4.38 | -0.23 |
| Aug | 4.54 | 4.55 | -0.01 |
| Sep | 3.30 | 3.30 | 0.00 |
| Oct | 2.67 | 2.77 | -0.10 |
| Nov | 1.57 | 1.71 | -0.14 |
| Dec | 1.11 | 1.33 | -0.22 |
32.22 | 34.03 | -1.81 |