| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.57 | 1.86 | -0.29 |
| Feb | 1.31 | 1.53 | -0.22 |
| Mar | 1.84 | 1.99 | -0.15 |
| Apr | 3.42 | 3.46 | -0.04 |
| May | 3.61 | 3.62 | -0.01 |
| Jun | 3.98 | 4.01 | -0.03 |
| Jul | 3.42 | 3.36 | 0.06 |
| Aug | 3.30 | 3.58 | -0.28 |
| Sep | 2.56 | 2.62 | -0.06 |
| Oct | 2.88 | 3.02 | -0.14 |
| Nov | 2.14 | 2.22 | -0.08 |
| Dec | 1.79 | 2.00 | -0.21 |
31.82 | 33.27 | -1.45 |