| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 5.48 | 5.58 | -0.10 |
| Feb | 4.13 | 4.35 | -0.22 |
| Mar | 5.23 | 5.15 | 0.08 |
| Apr | 5.19 | 5.29 | -0.10 |
| May | 4.98 | 5.27 | -0.29 |
| Jun | 6.64 | 6.79 | -0.15 |
| Jul | 7.90 | 8.03 | -0.13 |
| Aug | 7.08 | 7.19 | -0.11 |
| Sep | 5.89 | 5.96 | -0.07 |
| Oct | 3.88 | 3.91 | -0.03 |
| Nov | 3.93 | 3.98 | -0.05 |
| Dec | 4.84 | 5.00 | -0.16 |
65.17 | 66.50 | -1.33 |