| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.49 | 3.47 | 0.02 |
| Feb | 2.92 | 2.83 | 0.09 |
| Mar | 3.84 | 3.69 | 0.15 |
| Apr | 4.00 | 3.91 | 0.09 |
| May | 4.36 | 4.43 | -0.07 |
| Jun | 4.30 | 4.46 | -0.16 |
| Jul | 4.29 | 4.48 | -0.19 |
| Aug | 4.27 | 4.07 | 0.20 |
| Sep | 4.10 | 4.20 | -0.10 |
| Oct | 3.40 | 3.24 | 0.16 |
| Nov | 3.12 | 3.19 | -0.07 |
| Dec | 3.31 | 3.42 | -0.11 |
45.40 | 45.39 | 0.01 |