| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.23 | 4.45 | -0.22 |
| Feb | 3.99 | 4.01 | -0.02 |
| Mar | 4.60 | 4.64 | -0.04 |
| Apr | 3.95 | 4.20 | -0.25 |
| May | 3.98 | 4.10 | -0.12 |
| Jun | 4.22 | 4.38 | -0.16 |
| Jul | 4.32 | 4.71 | -0.39 |
| Aug | 4.74 | 4.96 | -0.22 |
| Sep | 3.98 | 4.26 | -0.28 |
| Oct | 3.48 | 3.77 | -0.29 |
| Nov | 3.81 | 4.00 | -0.19 |
| Dec | 4.65 | 4.97 | -0.32 |
49.95 | 52.45 | -2.50 |