| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.15 | 4.14 | 0.01 |
| Feb | 3.68 | 3.56 | 0.12 |
| Mar | 5.14 | 5.18 | -0.04 |
| Apr | 4.51 | 4.60 | -0.09 |
| May | 3.59 | 3.51 | 0.08 |
| Jun | 4.02 | 3.91 | 0.11 |
| Jul | 3.24 | 3.39 | -0.15 |
| Aug | 3.65 | 3.73 | -0.08 |
| Sep | 4.02 | 3.93 | 0.09 |
| Oct | 4.89 | 4.98 | -0.09 |
| Nov | 4.35 | 4.35 | 0.00 |
| Dec | 4.86 | 5.05 | -0.19 |
50.10 | 50.33 | -0.23 |