| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.69 | 0.65 | 0.04 |
| Feb | 0.67 | 0.69 | -0.02 |
| Mar | 1.33 | 1.31 | 0.02 |
| Apr | 2.40 | 2.40 | 0.00 |
| May | 3.33 | 3.27 | 0.06 |
| Jun | 4.37 | 4.38 | -0.01 |
| Jul | 4.37 | 4.25 | 0.12 |
| Aug | 3.64 | 3.52 | 0.12 |
| Sep | 2.91 | 2.86 | 0.05 |
| Oct | 2.63 | 2.60 | 0.03 |
| Nov | 1.18 | 1.15 | 0.03 |
| Dec | 0.82 | 0.84 | -0.02 |
28.34 | 27.92 | 0.42 |