| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.54 | 3.64 | -0.10 |
| Feb | 2.89 | 2.93 | -0.04 |
| Mar | 4.19 | 4.22 | -0.03 |
| Apr | 3.82 | 3.88 | -0.06 |
| May | 4.11 | 4.00 | 0.11 |
| Jun | 4.53 | 4.54 | -0.01 |
| Jul | 5.00 | 4.88 | 0.12 |
| Aug | 4.54 | 4.52 | 0.02 |
| Sep | 4.36 | 4.35 | 0.01 |
| Oct | 4.39 | 4.26 | 0.13 |
| Nov | 3.42 | 3.45 | -0.03 |
| Dec | 4.39 | 4.41 | -0.02 |
49.18 | 49.08 | 0.10 |