| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.57 | 1.63 | -0.06 |
| Feb | 1.92 | 1.97 | -0.05 |
| Mar | 2.76 | 2.67 | 0.09 |
| Apr | 4.31 | 4.17 | 0.14 |
| May | 5.43 | 5.26 | 0.17 |
| Jun | 5.11 | 5.49 | -0.38 |
| Jul | 4.61 | 4.37 | 0.24 |
| Aug | 4.08 | 3.78 | 0.30 |
| Sep | 3.76 | 3.90 | -0.14 |
| Oct | 3.36 | 3.33 | 0.03 |
| Nov | 2.56 | 2.54 | 0.02 |
| Dec | 1.93 | 1.78 | 0.15 |
41.40 | 40.89 | 0.51 |