| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.70 | 4.24 | 0.46 |
| Feb | 4.04 | 3.81 | 0.23 |
| Mar | 4.66 | 4.56 | 0.10 |
| Apr | 4.75 | 4.66 | 0.09 |
| May | 5.27 | 5.09 | 0.18 |
| Jun | 5.64 | 5.25 | 0.39 |
| Jul | 5.50 | 5.35 | 0.15 |
| Aug | 4.64 | 4.64 | 0.00 |
| Sep | 4.54 | 4.35 | 0.19 |
| Oct | 4.07 | 3.87 | 0.20 |
| Nov | 4.05 | 4.00 | 0.05 |
| Dec | 4.85 | 4.61 | 0.24 |
56.71 | 54.43 | 2.28 |