| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.56 | 3.52 | 0.04 |
| Feb | 2.99 | 2.80 | 0.19 |
| Mar | 3.94 | 3.72 | 0.22 |
| Apr | 4.14 | 3.92 | 0.22 |
| May | 4.41 | 4.37 | 0.04 |
| Jun | 4.40 | 4.43 | -0.03 |
| Jul | 4.39 | 4.55 | -0.16 |
| Aug | 4.38 | 4.22 | 0.16 |
| Sep | 4.26 | 4.30 | -0.04 |
| Oct | 3.38 | 3.35 | 0.03 |
| Nov | 3.29 | 3.23 | 0.06 |
| Dec | 3.42 | 3.58 | -0.16 |
46.56 | 45.99 | 0.57 |