| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.49 | 3.74 | -0.25 |
| Feb | 2.92 | 3.02 | -0.10 |
| Mar | 4.20 | 4.25 | -0.05 |
| Apr | 3.70 | 3.80 | -0.10 |
| May | 3.70 | 3.97 | -0.27 |
| Jun | 4.36 | 4.35 | 0.01 |
| Jul | 4.55 | 4.51 | 0.04 |
| Aug | 4.40 | 4.35 | 0.05 |
| Sep | 4.75 | 5.07 | -0.32 |
| Oct | 3.48 | 3.44 | 0.04 |
| Nov | 3.30 | 3.36 | -0.06 |
| Dec | 3.56 | 3.60 | -0.04 |
46.41 | 47.46 | -1.05 |