| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.35 | 0.29 | 0.06 |
| Feb | 0.38 | 0.36 | 0.02 |
| Mar | 0.93 | 0.88 | 0.05 |
| Apr | 1.84 | 1.66 | 0.18 |
| May | 2.40 | 2.74 | -0.34 |
| Jun | 1.73 | 1.76 | -0.03 |
| Jul | 1.73 | 1.76 | -0.03 |
| Aug | 1.38 | 1.51 | -0.13 |
| Sep | 1.34 | 1.25 | 0.09 |
| Oct | 1.07 | 1.06 | 0.01 |
| Nov | 0.59 | 0.54 | 0.05 |
| Dec | 0.32 | 0.31 | 0.01 |
14.06 | 14.12 | -0.06 |