| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.46 | 3.50 | -0.04 |
| Feb | 3.21 | 3.13 | 0.08 |
| Mar | 4.05 | 3.96 | 0.09 |
| Apr | 4.22 | 4.07 | 0.15 |
| May | 3.82 | 3.79 | 0.03 |
| Jun | 4.48 | 4.54 | -0.06 |
| Jul | 4.24 | 4.19 | 0.05 |
| Aug | 4.34 | 4.30 | 0.04 |
| Sep | 4.62 | 4.51 | 0.11 |
| Oct | 5.08 | 5.13 | -0.05 |
| Nov | 3.82 | 3.79 | 0.03 |
| Dec | 4.42 | 4.57 | -0.15 |
49.76 | 49.48 | 0.28 |