| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.18 | 4.28 | -0.10 |
| Feb | 3.76 | 3.84 | -0.08 |
| Mar | 4.62 | 4.59 | 0.03 |
| Apr | 3.78 | 3.80 | -0.02 |
| May | 3.85 | 3.71 | 0.14 |
| Jun | 4.27 | 4.10 | 0.17 |
| Jul | 3.88 | 3.97 | -0.09 |
| Aug | 4.36 | 4.44 | -0.08 |
| Sep | 3.75 | 3.46 | 0.29 |
| Oct | 3.28 | 3.38 | -0.10 |
| Nov | 3.64 | 3.79 | -0.15 |
| Dec | 4.32 | 4.62 | -0.30 |
47.69 | 47.98 | -0.29 |