| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.66 | 0.66 | 0.00 |
| Feb | 0.91 | 0.92 | -0.01 |
| Mar | 1.51 | 1.54 | -0.03 |
| Apr | 2.67 | 2.71 | -0.04 |
| May | 4.48 | 4.53 | -0.05 |
| Jun | 4.16 | 4.37 | -0.21 |
| Jul | 4.38 | 4.28 | 0.10 |
| Aug | 3.43 | 3.54 | -0.11 |
| Sep | 2.80 | 2.88 | -0.08 |
| Oct | 2.16 | 2.17 | -0.01 |
| Nov | 1.26 | 1.27 | -0.01 |
| Dec | 0.97 | 0.97 | 0.00 |
29.39 | 29.84 | -0.45 |