| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 6.40 | 5.98 | 0.42 |
| Feb | 4.71 | 4.49 | 0.22 |
| Mar | 4.68 | 4.56 | 0.12 |
| Apr | 3.35 | 3.45 | -0.10 |
| May | 2.43 | 2.44 | -0.01 |
| Jun | 1.58 | 1.61 | -0.03 |
| Jul | 0.41 | 0.44 | -0.03 |
| Aug | 0.56 | 0.49 | 0.07 |
| Sep | 1.55 | 1.48 | 0.07 |
| Oct | 3.83 | 3.75 | 0.08 |
| Nov | 6.65 | 6.31 | 0.34 |
| Dec | 7.50 | 7.15 | 0.35 |
43.65 | 42.15 | 1.50 |