| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.98 | 4.07 | -0.09 |
| Feb | 3.81 | 3.84 | -0.03 |
| Mar | 4.40 | 4.47 | -0.07 |
| Apr | 3.10 | 3.22 | -0.12 |
| May | 3.40 | 3.21 | 0.19 |
| Jun | 4.27 | 3.97 | 0.30 |
| Jul | 3.80 | 3.55 | 0.25 |
| Aug | 3.97 | 3.81 | 0.16 |
| Sep | 3.32 | 3.53 | -0.21 |
| Oct | 3.11 | 3.14 | -0.03 |
| Nov | 3.50 | 3.60 | -0.10 |
| Dec | 4.52 | 4.47 | 0.05 |
45.18 | 44.88 | 0.30 |