| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.80 | 3.86 | -0.06 |
| Feb | 3.29 | 3.37 | -0.08 |
| Mar | 4.32 | 4.37 | -0.05 |
| Apr | 4.31 | 4.45 | -0.14 |
| May | 3.62 | 3.51 | 0.11 |
| Jun | 4.30 | 4.35 | -0.05 |
| Jul | 3.91 | 4.00 | -0.09 |
| Aug | 4.18 | 4.24 | -0.06 |
| Sep | 4.18 | 4.10 | 0.08 |
| Oct | 4.88 | 4.77 | 0.11 |
| Nov | 3.93 | 3.96 | -0.03 |
| Dec | 4.61 | 4.70 | -0.09 |
49.33 | 49.68 | -0.35 |