| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.50 | 3.85 | -0.35 |
| Feb | 2.99 | 3.41 | -0.42 |
| Mar | 4.37 | 4.80 | -0.43 |
| Apr | 4.13 | 4.47 | -0.34 |
| May | 3.59 | 3.62 | -0.03 |
| Jun | 3.83 | 3.98 | -0.15 |
| Jul | 3.25 | 3.40 | -0.15 |
| Aug | 3.72 | 4.17 | -0.45 |
| Sep | 4.08 | 4.38 | -0.30 |
| Oct | 4.53 | 4.66 | -0.13 |
| Nov | 3.72 | 3.95 | -0.23 |
| Dec | 4.36 | 4.75 | -0.39 |
46.07 | 49.44 | -3.37 |