| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.68 | 0.68 | 0.00 |
| Feb | 0.68 | 0.72 | -0.04 |
| Mar | 1.30 | 1.25 | 0.05 |
| Apr | 2.27 | 2.26 | 0.01 |
| May | 3.36 | 3.39 | -0.03 |
| Jun | 4.29 | 4.28 | 0.01 |
| Jul | 4.33 | 4.15 | 0.18 |
| Aug | 3.51 | 3.34 | 0.17 |
| Sep | 2.97 | 2.88 | 0.09 |
| Oct | 2.67 | 2.68 | -0.01 |
| Nov | 1.20 | 1.13 | 0.07 |
| Dec | 0.87 | 0.92 | -0.05 |
28.13 | 27.68 | 0.45 |