| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.54 | 1.80 | -0.26 |
| Feb | 1.29 | 1.65 | -0.36 |
| Mar | 1.37 | 1.70 | -0.33 |
| Apr | 1.83 | 2.17 | -0.34 |
| May | 1.67 | 1.87 | -0.20 |
| Jun | 0.80 | 0.86 | -0.06 |
| Jul | 0.55 | 0.57 | -0.02 |
| Aug | 0.74 | 0.70 | 0.04 |
| Sep | 1.22 | 1.21 | 0.01 |
| Oct | 1.46 | 1.65 | -0.19 |
| Nov | 1.23 | 1.51 | -0.28 |
| Dec | 1.42 | 1.75 | -0.33 |
15.12 | 17.44 | -2.32 |