| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.34 | 3.47 | -0.13 |
| Feb | 3.16 | 3.32 | -0.16 |
| Mar | 3.42 | 3.50 | -0.08 |
| Apr | 3.26 | 3.21 | 0.05 |
| May | 3.31 | 3.49 | -0.18 |
| Jun | 5.63 | 5.77 | -0.14 |
| Jul | 5.75 | 6.42 | -0.67 |
| Aug | 6.26 | 6.58 | -0.32 |
| Sep | 5.12 | 5.48 | -0.36 |
| Oct | 4.23 | 4.20 | 0.03 |
| Nov | 2.83 | 2.78 | 0.05 |
| Dec | 3.35 | 3.64 | -0.29 |
49.66 | 51.86 | -2.20 |