| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.82 | 0.82 | 0.00 |
| Feb | 0.91 | 0.89 | 0.02 |
| Mar | 1.73 | 1.63 | 0.10 |
| Apr | 3.20 | 3.09 | 0.11 |
| May | 4.28 | 4.26 | 0.02 |
| Jun | 5.16 | 5.14 | 0.02 |
| Jul | 4.16 | 4.10 | 0.06 |
| Aug | 4.04 | 4.07 | -0.03 |
| Sep | 3.29 | 3.25 | 0.04 |
| Oct | 2.51 | 2.57 | -0.06 |
| Nov | 1.52 | 1.47 | 0.05 |
| Dec | 1.18 | 1.11 | 0.07 |
32.80 | 32.40 | 0.40 |