| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.01 | 3.11 | -0.10 |
| Feb | 2.57 | 2.58 | -0.01 |
| Mar | 3.68 | 3.68 | 0.00 |
| Apr | 3.77 | 3.77 | 0.00 |
| May | 3.98 | 4.37 | -0.39 |
| Jun | 4.08 | 4.20 | -0.12 |
| Jul | 4.07 | 4.33 | -0.26 |
| Aug | 3.73 | 3.65 | 0.08 |
| Sep | 4.51 | 4.57 | -0.06 |
| Oct | 3.70 | 3.92 | -0.22 |
| Nov | 3.17 | 3.08 | 0.09 |
| Dec | 3.45 | 3.47 | -0.02 |
43.72 | 44.73 | -1.01 |