| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.68 | 3.82 | -0.14 |
| Feb | 3.42 | 3.52 | -0.10 |
| Mar | 3.74 | 4.10 | -0.36 |
| Apr | 2.91 | 3.00 | -0.09 |
| May | 3.34 | 3.39 | -0.05 |
| Jun | 4.76 | 4.93 | -0.17 |
| Jul | 4.61 | 4.84 | -0.23 |
| Aug | 4.64 | 4.86 | -0.22 |
| Sep | 4.00 | 4.12 | -0.12 |
| Oct | 3.19 | 3.45 | -0.26 |
| Nov | 2.83 | 3.05 | -0.22 |
| Dec | 3.72 | 3.87 | -0.15 |
44.84 | 46.95 | -2.11 |