| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.80 | 4.05 | -0.25 |
| Feb | 3.30 | 3.68 | -0.38 |
| Mar | 4.40 | 4.54 | -0.14 |
| Apr | 4.02 | 4.09 | -0.07 |
| May | 3.19 | 3.27 | -0.08 |
| Jun | 3.32 | 3.37 | -0.05 |
| Jul | 2.59 | 2.73 | -0.14 |
| Aug | 3.40 | 3.25 | 0.15 |
| Sep | 3.85 | 3.84 | 0.01 |
| Oct | 4.41 | 4.47 | -0.06 |
| Nov | 4.05 | 3.93 | 0.12 |
| Dec | 4.65 | 4.96 | -0.31 |
44.98 | 46.18 | -1.20 |