| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.47 | 3.44 | 0.03 |
| Feb | 3.44 | 3.51 | -0.07 |
| Mar | 4.24 | 4.27 | -0.03 |
| Apr | 4.52 | 4.59 | -0.07 |
| May | 3.81 | 3.79 | 0.02 |
| Jun | 4.41 | 4.45 | -0.04 |
| Jul | 3.78 | 3.91 | -0.13 |
| Aug | 3.60 | 3.62 | -0.02 |
| Sep | 3.88 | 3.85 | 0.03 |
| Oct | 5.29 | 5.51 | -0.22 |
| Nov | 4.43 | 4.31 | 0.12 |
| Dec | 4.58 | 4.65 | -0.07 |
49.45 | 49.90 | -0.45 |