| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.01 | 1.07 | -0.06 |
| Feb | 1.48 | 1.54 | -0.06 |
| Mar | 2.39 | 2.34 | 0.05 |
| Apr | 3.86 | 3.91 | -0.05 |
| May | 5.33 | 5.57 | -0.24 |
| Jun | 5.05 | 5.08 | -0.03 |
| Jul | 4.24 | 4.30 | -0.06 |
| Aug | 3.94 | 4.00 | -0.06 |
| Sep | 4.04 | 4.27 | -0.23 |
| Oct | 3.10 | 3.17 | -0.07 |
| Nov | 2.21 | 2.18 | 0.03 |
| Dec | 1.56 | 1.58 | -0.02 |
38.21 | 39.01 | -0.80 |