| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.65 | 0.63 | 0.02 |
| Feb | 0.65 | 0.69 | -0.04 |
| Mar | 1.15 | 1.22 | -0.07 |
| Apr | 2.04 | 2.19 | -0.15 |
| May | 3.21 | 3.35 | -0.14 |
| Jun | 4.26 | 4.16 | 0.10 |
| Jul | 4.16 | 4.00 | 0.16 |
| Aug | 3.25 | 3.12 | 0.13 |
| Sep | 2.94 | 3.02 | -0.08 |
| Oct | 2.68 | 2.76 | -0.08 |
| Nov | 1.14 | 1.08 | 0.06 |
| Dec | 0.87 | 0.92 | -0.05 |
27.00 | 27.14 | -0.14 |