| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.30 | 0.29 | 0.01 |
| Feb | 0.47 | 0.43 | 0.04 |
| Mar | 0.91 | 0.90 | 0.01 |
| Apr | 1.95 | 1.88 | 0.07 |
| May | 2.85 | 2.82 | 0.03 |
| Jun | 2.98 | 3.06 | -0.08 |
| Jul | 2.60 | 2.54 | 0.06 |
| Aug | 2.30 | 2.26 | 0.04 |
| Sep | 1.45 | 1.42 | 0.03 |
| Oct | 1.33 | 1.27 | 0.06 |
| Nov | 0.49 | 0.46 | 0.03 |
| Dec | 0.37 | 0.34 | 0.03 |
18.00 | 17.67 | 0.33 |