| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.92 | 1.02 | -0.10 |
| Feb | 1.44 | 1.52 | -0.08 |
| Mar | 2.39 | 2.40 | -0.01 |
| Apr | 3.74 | 3.77 | -0.03 |
| May | 5.39 | 5.58 | -0.19 |
| Jun | 4.70 | 4.99 | -0.29 |
| Jul | 4.19 | 4.46 | -0.27 |
| Aug | 4.01 | 3.98 | 0.03 |
| Sep | 4.09 | 4.08 | 0.01 |
| Oct | 3.18 | 3.22 | -0.04 |
| Nov | 2.12 | 2.14 | -0.02 |
| Dec | 1.51 | 1.51 | 0.00 |
37.68 | 38.67 | -0.99 |