| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.43 | 0.37 | 0.06 |
| Feb | 0.56 | 0.50 | 0.06 |
| Mar | 0.92 | 0.88 | 0.04 |
| Apr | 1.91 | 1.93 | -0.02 |
| May | 3.42 | 3.34 | 0.08 |
| Jun | 2.98 | 2.91 | 0.07 |
| Jul | 2.36 | 2.15 | 0.21 |
| Aug | 1.52 | 1.50 | 0.02 |
| Sep | 1.20 | 1.18 | 0.02 |
| Oct | 1.48 | 1.50 | -0.02 |
| Nov | 0.56 | 0.52 | 0.04 |
| Dec | 0.52 | 0.47 | 0.05 |
17.86 | 17.25 | 0.61 |