| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.39 | 0.42 | -0.03 |
| Feb | 0.50 | 0.58 | -0.08 |
| Mar | 0.92 | 1.06 | -0.14 |
| Apr | 1.91 | 2.06 | -0.15 |
| May | 3.07 | 3.06 | 0.01 |
| Jun | 3.05 | 2.98 | 0.07 |
| Jul | 2.24 | 2.04 | 0.20 |
| Aug | 1.70 | 1.62 | 0.08 |
| Sep | 1.21 | 1.18 | 0.03 |
| Oct | 1.44 | 1.56 | -0.12 |
| Nov | 0.46 | 0.56 | -0.10 |
| Dec | 0.40 | 0.50 | -0.10 |
17.29 | 17.62 | -0.33 |