| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.31 | 3.46 | -0.15 |
| Feb | 2.43 | 2.34 | 0.09 |
| Mar | 2.21 | 2.24 | -0.03 |
| Apr | 1.71 | 1.86 | -0.15 |
| May | 1.39 | 1.45 | -0.06 |
| Jun | 0.70 | 0.76 | -0.06 |
| Jul | 0.29 | 0.31 | -0.02 |
| Aug | 0.28 | 0.35 | -0.07 |
| Sep | 0.46 | 0.47 | -0.01 |
| Oct | 1.39 | 1.43 | -0.04 |
| Nov | 2.94 | 2.88 | 0.06 |
| Dec | 4.16 | 4.46 | -0.30 |
21.27 | 22.01 | -0.74 |