| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.97 | 1.16 | -0.19 |
| Feb | 0.92 | 1.00 | -0.08 |
| Mar | 1.42 | 1.48 | -0.06 |
| Apr | 2.45 | 2.62 | -0.17 |
| May | 3.16 | 3.42 | -0.26 |
| Jun | 4.30 | 4.37 | -0.07 |
| Jul | 3.92 | 3.86 | 0.06 |
| Aug | 3.48 | 3.62 | -0.14 |
| Sep | 3.26 | 3.42 | -0.16 |
| Oct | 2.94 | 3.08 | -0.14 |
| Nov | 1.79 | 2.06 | -0.27 |
| Dec | 1.33 | 1.56 | -0.23 |
29.94 | 31.65 | -1.71 |