| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.77 | 0.91 | -0.14 |
| Feb | 0.83 | 0.90 | -0.07 |
| Mar | 1.60 | 1.62 | -0.02 |
| Apr | 2.83 | 3.08 | -0.25 |
| May | 4.21 | 4.27 | -0.06 |
| Jun | 4.67 | 4.95 | -0.28 |
| Jul | 4.15 | 4.23 | -0.08 |
| Aug | 4.50 | 4.47 | 0.03 |
| Sep | 3.34 | 3.38 | -0.04 |
| Oct | 2.86 | 2.95 | -0.09 |
| Nov | 1.67 | 1.73 | -0.06 |
| Dec | 1.11 | 1.26 | -0.15 |
32.54 | 33.75 | -1.21 |