| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.76 | 0.89 | -0.13 |
| Feb | 0.74 | 0.77 | -0.03 |
| Mar | 1.17 | 1.19 | -0.02 |
| Apr | 1.91 | 2.02 | -0.11 |
| May | 3.06 | 3.14 | -0.08 |
| Jun | 4.51 | 4.50 | 0.01 |
| Jul | 3.93 | 4.10 | -0.17 |
| Aug | 3.33 | 3.36 | -0.03 |
| Sep | 2.98 | 3.21 | -0.23 |
| Oct | 2.68 | 2.72 | -0.04 |
| Nov | 1.37 | 1.45 | -0.08 |
| Dec | 1.03 | 1.12 | -0.09 |
27.47 | 28.47 | -1.00 |