| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.55 | 3.58 | -0.03 |
| Feb | 2.91 | 2.98 | -0.07 |
| Mar | 4.46 | 4.47 | -0.01 |
| Apr | 3.41 | 3.55 | -0.14 |
| May | 3.46 | 3.51 | -0.05 |
| Jun | 3.82 | 4.05 | -0.23 |
| Jul | 4.82 | 4.69 | 0.13 |
| Aug | 4.80 | 4.91 | -0.11 |
| Sep | 3.80 | 4.06 | -0.26 |
| Oct | 4.17 | 4.19 | -0.02 |
| Nov | 3.35 | 3.34 | 0.01 |
| Dec | 4.41 | 4.43 | -0.02 |
46.96 | 47.76 | -0.80 |