| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.56 | 3.55 | 0.01 |
| Feb | 3.22 | 3.10 | 0.12 |
| Mar | 3.98 | 3.77 | 0.21 |
| Apr | 3.78 | 3.49 | 0.29 |
| May | 3.61 | 3.61 | 0.00 |
| Jun | 4.26 | 4.25 | 0.01 |
| Jul | 3.79 | 3.68 | 0.11 |
| Aug | 4.16 | 4.14 | 0.02 |
| Sep | 3.77 | 3.83 | -0.06 |
| Oct | 3.21 | 3.16 | 0.05 |
| Nov | 3.23 | 3.01 | 0.22 |
| Dec | 3.73 | 3.80 | -0.07 |
44.30 | 43.39 | 0.91 |