| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.49 | 3.47 | 0.02 |
| Feb | 2.85 | 2.66 | 0.19 |
| Mar | 4.05 | 4.00 | 0.05 |
| Apr | 3.38 | 3.42 | -0.04 |
| May | 3.62 | 3.54 | 0.08 |
| Jun | 4.53 | 4.19 | 0.34 |
| Jul | 5.02 | 4.93 | 0.09 |
| Aug | 4.95 | 5.01 | -0.06 |
| Sep | 5.06 | 5.08 | -0.02 |
| Oct | 3.47 | 3.47 | 0.00 |
| Nov | 3.33 | 3.05 | 0.28 |
| Dec | 3.55 | 3.47 | 0.08 |
47.30 | 46.29 | 1.01 |