| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.42 | 3.64 | -0.22 |
| Feb | 2.97 | 3.12 | -0.15 |
| Mar | 3.80 | 4.04 | -0.24 |
| Apr | 3.77 | 4.01 | -0.24 |
| May | 3.68 | 3.52 | 0.16 |
| Jun | 4.05 | 4.08 | -0.03 |
| Jul | 4.30 | 4.14 | 0.16 |
| Aug | 4.05 | 4.30 | -0.25 |
| Sep | 3.97 | 3.98 | -0.01 |
| Oct | 3.12 | 3.23 | -0.11 |
| Nov | 3.20 | 3.30 | -0.10 |
| Dec | 3.46 | 3.79 | -0.33 |
43.79 | 45.15 | -1.36 |