| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.76 | 0.94 | -0.18 |
| Feb | 0.78 | 0.92 | -0.14 |
| Mar | 1.59 | 1.71 | -0.12 |
| Apr | 2.89 | 3.06 | -0.17 |
| May | 4.15 | 4.28 | -0.13 |
| Jun | 4.67 | 4.86 | -0.19 |
| Jul | 4.15 | 4.30 | -0.15 |
| Aug | 4.51 | 4.69 | -0.18 |
| Sep | 3.24 | 3.29 | -0.05 |
| Oct | 2.63 | 2.73 | -0.10 |
| Nov | 1.56 | 1.68 | -0.12 |
| Dec | 1.07 | 1.27 | -0.20 |
32.00 | 33.73 | -1.73 |