| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.37 | 0.36 | 0.01 |
| Feb | 0.40 | 0.43 | -0.03 |
| Mar | 0.98 | 1.19 | -0.21 |
| Apr | 1.89 | 1.92 | -0.03 |
| May | 2.40 | 2.65 | -0.25 |
| Jun | 1.74 | 1.76 | -0.02 |
| Jul | 1.58 | 1.48 | 0.10 |
| Aug | 1.31 | 1.34 | -0.03 |
| Sep | 1.29 | 1.20 | 0.09 |
| Oct | 1.09 | 1.17 | -0.08 |
| Nov | 0.63 | 0.66 | -0.03 |
| Dec | 0.35 | 0.43 | -0.08 |
14.03 | 14.59 | -0.56 |