| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.30 | 2.66 | -0.36 |
| Feb | 1.79 | 2.07 | -0.28 |
| Mar | 2.12 | 2.40 | -0.28 |
| Apr | 3.32 | 3.58 | -0.26 |
| May | 4.20 | 4.21 | -0.01 |
| Jun | 3.82 | 3.76 | 0.06 |
| Jul | 3.58 | 3.60 | -0.02 |
| Aug | 3.68 | 3.90 | -0.22 |
| Sep | 3.20 | 3.26 | -0.06 |
| Oct | 3.62 | 3.84 | -0.22 |
| Nov | 2.58 | 2.84 | -0.26 |
| Dec | 2.16 | 2.46 | -0.30 |
36.37 | 38.58 | -2.21 |