| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.17 | 3.51 | -0.34 |
| Feb | 2.87 | 3.04 | -0.17 |
| Mar | 3.44 | 3.81 | -0.37 |
| Apr | 3.85 | 4.29 | -0.44 |
| May | 4.28 | 4.48 | -0.20 |
| Jun | 5.24 | 5.06 | 0.18 |
| Jul | 5.01 | 5.30 | -0.29 |
| Aug | 4.49 | 4.78 | -0.29 |
| Sep | 4.15 | 4.06 | 0.09 |
| Oct | 5.03 | 5.23 | -0.20 |
| Nov | 3.73 | 4.00 | -0.27 |
| Dec | 3.98 | 4.56 | -0.58 |
49.24 | 52.12 | -2.88 |