| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.64 | 0.62 | 0.02 |
| Feb | 0.77 | 0.79 | -0.02 |
| Mar | 1.54 | 1.60 | -0.06 |
| Apr | 2.88 | 3.07 | -0.19 |
| May | 4.02 | 4.15 | -0.13 |
| Jun | 4.54 | 4.54 | 0.00 |
| Jul | 3.32 | 3.39 | -0.07 |
| Aug | 3.39 | 3.46 | -0.07 |
| Sep | 2.92 | 2.98 | -0.06 |
| Oct | 2.34 | 2.40 | -0.06 |
| Nov | 1.26 | 1.29 | -0.03 |
| Dec | 0.93 | 0.92 | 0.01 |
28.55 | 29.21 | -0.66 |