| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.39 | 3.40 | -0.01 |
| Feb | 3.09 | 3.13 | -0.04 |
| Mar | 4.46 | 4.58 | -0.12 |
| Apr | 3.44 | 3.59 | -0.15 |
| May | 3.22 | 3.39 | -0.17 |
| Jun | 3.67 | 3.70 | -0.03 |
| Jul | 4.31 | 4.29 | 0.02 |
| Aug | 4.66 | 4.56 | 0.10 |
| Sep | 3.80 | 3.90 | -0.10 |
| Oct | 4.15 | 4.34 | -0.19 |
| Nov | 3.36 | 3.40 | -0.04 |
| Dec | 4.30 | 4.45 | -0.15 |
45.85 | 46.73 | -0.88 |