| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.76 | 4.71 | 0.05 |
| Feb | 4.00 | 4.26 | -0.26 |
| Mar | 4.52 | 4.55 | -0.03 |
| Apr | 4.03 | 4.31 | -0.28 |
| May | 4.73 | 4.53 | 0.20 |
| Jun | 4.40 | 4.44 | -0.04 |
| Jul | 3.13 | 3.11 | 0.02 |
| Aug | 3.49 | 3.60 | -0.11 |
| Sep | 3.99 | 4.01 | -0.02 |
| Oct | 4.76 | 4.50 | 0.26 |
| Nov | 4.62 | 4.56 | 0.06 |
| Dec | 4.88 | 4.98 | -0.10 |
51.31 | 51.56 | -0.25 |