| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.76 | 0.84 | -0.08 |
| Feb | 0.78 | 0.87 | -0.09 |
| Mar | 1.56 | 1.54 | 0.02 |
| Apr | 2.98 | 2.92 | 0.06 |
| May | 4.24 | 4.23 | 0.01 |
| Jun | 4.91 | 4.50 | 0.41 |
| Jul | 4.06 | 4.02 | 0.04 |
| Aug | 4.29 | 4.43 | -0.14 |
| Sep | 3.37 | 3.22 | 0.15 |
| Oct | 2.55 | 2.52 | 0.03 |
| Nov | 1.51 | 1.54 | -0.03 |
| Dec | 1.08 | 1.19 | -0.11 |
32.09 | 31.82 | 0.27 |