| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.75 | 3.87 | -0.12 |
| Feb | 3.50 | 3.62 | -0.12 |
| Mar | 3.83 | 4.15 | -0.32 |
| Apr | 2.98 | 3.08 | -0.10 |
| May | 3.29 | 3.40 | -0.11 |
| Jun | 4.70 | 4.86 | -0.16 |
| Jul | 4.51 | 4.76 | -0.25 |
| Aug | 4.53 | 4.91 | -0.38 |
| Sep | 3.98 | 4.20 | -0.22 |
| Oct | 3.22 | 3.51 | -0.29 |
| Nov | 2.92 | 3.22 | -0.30 |
| Dec | 3.84 | 3.97 | -0.13 |
45.05 | 47.55 | -2.50 |