| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.83 | 0.76 | 0.07 |
| Feb | 1.19 | 1.14 | 0.05 |
| Mar | 2.32 | 2.25 | 0.07 |
| Apr | 2.65 | 2.54 | 0.11 |
| May | 4.94 | 4.70 | 0.24 |
| Jun | 4.57 | 4.36 | 0.21 |
| Jul | 3.66 | 3.93 | -0.27 |
| Aug | 3.66 | 3.70 | -0.04 |
| Sep | 2.37 | 2.30 | 0.07 |
| Oct | 2.62 | 2.64 | -0.02 |
| Nov | 1.31 | 1.26 | 0.05 |
| Dec | 1.22 | 1.17 | 0.05 |
31.34 | 30.75 | 0.59 |