| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.45 | 3.64 | -0.19 |
| Feb | 2.97 | 3.11 | -0.14 |
| Mar | 3.78 | 4.03 | -0.25 |
| Apr | 3.88 | 4.02 | -0.14 |
| May | 3.72 | 3.65 | 0.07 |
| Jun | 4.02 | 4.09 | -0.07 |
| Jul | 4.32 | 4.20 | 0.12 |
| Aug | 4.16 | 4.29 | -0.13 |
| Sep | 4.00 | 4.08 | -0.08 |
| Oct | 3.16 | 3.24 | -0.08 |
| Nov | 3.19 | 3.29 | -0.10 |
| Dec | 3.45 | 3.77 | -0.32 |
44.10 | 45.41 | -1.31 |