| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.62 | 1.65 | -0.03 |
| Feb | 1.80 | 1.74 | 0.06 |
| Mar | 2.49 | 2.48 | 0.01 |
| Apr | 2.38 | 2.31 | 0.07 |
| May | 4.24 | 4.22 | 0.02 |
| Jun | 2.94 | 3.05 | -0.11 |
| Jul | 1.90 | 2.09 | -0.19 |
| Aug | 2.27 | 2.22 | 0.05 |
| Sep | 3.37 | 3.28 | 0.09 |
| Oct | 2.87 | 2.96 | -0.09 |
| Nov | 2.19 | 2.26 | -0.07 |
| Dec | 1.78 | 1.88 | -0.10 |
29.85 | 30.14 | -0.29 |