| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.49 | 3.40 | 0.09 |
| Feb | 3.27 | 3.06 | 0.21 |
| Mar | 4.56 | 4.45 | 0.11 |
| Apr | 4.96 | 4.87 | 0.09 |
| May | 5.48 | 5.23 | 0.25 |
| Jun | 3.90 | 4.01 | -0.11 |
| Jul | 3.87 | 3.84 | 0.03 |
| Aug | 3.70 | 3.63 | 0.07 |
| Sep | 3.73 | 3.64 | 0.09 |
| Oct | 4.14 | 4.00 | 0.14 |
| Nov | 4.77 | 4.87 | -0.10 |
| Dec | 4.23 | 4.12 | 0.11 |
50.10 | 49.12 | 0.98 |