| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.41 | 4.31 | 0.10 |
| Feb | 3.63 | 3.52 | 0.11 |
| Mar | 4.70 | 4.56 | 0.14 |
| Apr | 5.09 | 5.11 | -0.02 |
| May | 4.96 | 4.85 | 0.11 |
| Jun | 4.62 | 4.70 | -0.08 |
| Jul | 5.09 | 4.74 | 0.35 |
| Aug | 5.32 | 5.01 | 0.31 |
| Sep | 5.03 | 4.79 | 0.24 |
| Oct | 4.32 | 4.06 | 0.26 |
| Nov | 4.53 | 4.06 | 0.47 |
| Dec | 4.30 | 4.52 | -0.22 |
56.00 | 54.23 | 1.77 |