| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.43 | 3.67 | -0.24 |
| Feb | 2.99 | 3.15 | -0.16 |
| Mar | 4.06 | 4.12 | -0.06 |
| Apr | 4.08 | 4.17 | -0.09 |
| May | 3.87 | 3.95 | -0.08 |
| Jun | 4.38 | 4.43 | -0.05 |
| Jul | 4.44 | 4.50 | -0.06 |
| Aug | 4.32 | 4.52 | -0.20 |
| Sep | 4.54 | 4.40 | 0.14 |
| Oct | 4.73 | 4.82 | -0.09 |
| Nov | 3.88 | 3.92 | -0.04 |
| Dec | 4.16 | 4.50 | -0.34 |
48.88 | 50.15 | -1.27 |