| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 5.90 | 5.83 | 0.07 |
| Feb | 4.31 | 4.23 | 0.08 |
| Mar | 4.55 | 4.26 | 0.29 |
| Apr | 3.48 | 3.44 | 0.04 |
| May | 2.49 | 2.46 | 0.03 |
| Jun | 1.21 | 1.14 | 0.07 |
| Jul | 0.32 | 0.30 | 0.02 |
| Aug | 0.38 | 0.35 | 0.03 |
| Sep | 1.19 | 1.12 | 0.07 |
| Oct | 3.16 | 3.10 | 0.06 |
| Nov | 5.91 | 5.83 | 0.08 |
| Dec | 7.21 | 6.93 | 0.28 |
40.11 | 38.99 | 1.12 |