| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.86 | 3.93 | -0.07 |
| Feb | 3.54 | 3.66 | -0.12 |
| Mar | 4.16 | 4.16 | 0.00 |
| Apr | 3.18 | 3.19 | -0.01 |
| May | 3.28 | 3.17 | 0.11 |
| Jun | 4.10 | 4.20 | -0.10 |
| Jul | 3.94 | 3.90 | 0.04 |
| Aug | 4.06 | 4.40 | -0.34 |
| Sep | 3.77 | 3.98 | -0.21 |
| Oct | 3.29 | 3.38 | -0.09 |
| Nov | 3.38 | 3.41 | -0.03 |
| Dec | 4.19 | 4.16 | 0.03 |
44.75 | 45.54 | -0.79 |