| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.69 | 4.71 | -0.02 |
| Feb | 4.71 | 4.67 | 0.04 |
| Mar | 5.03 | 4.80 | 0.23 |
| Apr | 3.98 | 4.01 | -0.03 |
| May | 3.78 | 3.96 | -0.18 |
| Jun | 4.58 | 4.67 | -0.09 |
| Jul | 4.52 | 4.68 | -0.16 |
| Aug | 4.39 | 4.69 | -0.30 |
| Sep | 4.16 | 4.18 | -0.02 |
| Oct | 3.64 | 3.56 | 0.08 |
| Nov | 4.17 | 4.18 | -0.01 |
| Dec | 4.64 | 4.73 | -0.09 |
52.29 | 52.84 | -0.55 |