| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.80 | 0.92 | -0.12 |
| Feb | 0.82 | 0.92 | -0.10 |
| Mar | 1.62 | 1.73 | -0.11 |
| Apr | 2.91 | 3.00 | -0.09 |
| May | 4.19 | 4.32 | -0.13 |
| Jun | 4.83 | 4.99 | -0.16 |
| Jul | 4.22 | 4.29 | -0.07 |
| Aug | 4.50 | 4.69 | -0.19 |
| Sep | 3.23 | 3.34 | -0.11 |
| Oct | 2.63 | 2.71 | -0.08 |
| Nov | 1.58 | 1.66 | -0.08 |
| Dec | 1.11 | 1.26 | -0.15 |
32.44 | 33.83 | -1.39 |