| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.67 | 0.66 | 0.01 |
| Feb | 0.67 | 0.70 | -0.03 |
| Mar | 1.26 | 1.20 | 0.06 |
| Apr | 2.23 | 2.20 | 0.03 |
| May | 3.35 | 3.42 | -0.07 |
| Jun | 4.26 | 4.27 | -0.01 |
| Jul | 4.33 | 4.22 | 0.11 |
| Aug | 3.46 | 3.25 | 0.21 |
| Sep | 2.96 | 2.86 | 0.10 |
| Oct | 2.65 | 2.66 | -0.01 |
| Nov | 1.20 | 1.11 | 0.09 |
| Dec | 0.87 | 0.90 | -0.03 |
27.91 | 27.45 | 0.46 |