| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.75 | 3.76 | -0.01 |
| Feb | 3.32 | 3.26 | 0.06 |
| Mar | 4.39 | 4.40 | -0.01 |
| Apr | 4.26 | 4.30 | -0.04 |
| May | 3.66 | 3.49 | 0.17 |
| Jun | 4.15 | 4.18 | -0.03 |
| Jul | 3.66 | 3.62 | 0.04 |
| Aug | 3.84 | 3.91 | -0.07 |
| Sep | 3.96 | 3.89 | 0.07 |
| Oct | 4.89 | 4.74 | 0.15 |
| Nov | 3.92 | 3.85 | 0.07 |
| Dec | 4.65 | 4.74 | -0.09 |
48.45 | 48.14 | 0.31 |