| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.52 | 3.63 | -0.11 |
| Feb | 3.68 | 3.70 | -0.02 |
| Mar | 4.59 | 4.64 | -0.05 |
| Apr | 4.72 | 4.59 | 0.13 |
| May | 5.27 | 5.30 | -0.03 |
| Jun | 4.78 | 4.86 | -0.08 |
| Jul | 4.83 | 5.11 | -0.28 |
| Aug | 3.50 | 3.58 | -0.08 |
| Sep | 3.68 | 3.56 | 0.12 |
| Oct | 3.66 | 3.52 | 0.14 |
| Nov | 3.32 | 3.36 | -0.04 |
| Dec | 4.23 | 4.33 | -0.10 |
49.78 | 50.18 | -0.40 |