| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.35 | 3.56 | -0.21 |
| Feb | 2.80 | 2.98 | -0.18 |
| Mar | 4.04 | 4.14 | -0.10 |
| Apr | 3.92 | 4.08 | -0.16 |
| May | 3.86 | 3.93 | -0.07 |
| Jun | 4.36 | 4.56 | -0.20 |
| Jul | 4.48 | 4.50 | -0.02 |
| Aug | 4.38 | 4.56 | -0.18 |
| Sep | 4.20 | 4.27 | -0.07 |
| Oct | 4.23 | 4.31 | -0.08 |
| Nov | 3.53 | 3.55 | -0.02 |
| Dec | 4.20 | 4.36 | -0.16 |
47.35 | 48.80 | -1.45 |