| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.80 | 0.96 | -0.16 |
| Feb | 0.81 | 0.92 | -0.11 |
| Mar | 1.63 | 1.70 | -0.07 |
| Apr | 2.90 | 3.13 | -0.23 |
| May | 4.16 | 4.29 | -0.13 |
| Jun | 4.74 | 4.98 | -0.24 |
| Jul | 4.17 | 4.23 | -0.06 |
| Aug | 4.63 | 4.54 | 0.09 |
| Sep | 3.36 | 3.37 | -0.01 |
| Oct | 2.77 | 3.02 | -0.25 |
| Nov | 1.63 | 1.74 | -0.11 |
| Dec | 1.16 | 1.31 | -0.15 |
32.76 | 34.19 | -1.43 |