| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.60 | 1.57 | 0.03 |
| Feb | 1.20 | 1.13 | 0.07 |
| Mar | 1.82 | 1.74 | 0.08 |
| Apr | 2.96 | 3.00 | -0.04 |
| May | 3.36 | 3.30 | 0.06 |
| Jun | 3.83 | 3.71 | 0.12 |
| Jul | 3.54 | 3.47 | 0.07 |
| Aug | 3.31 | 3.31 | 0.00 |
| Sep | 3.27 | 3.14 | 0.13 |
| Oct | 3.10 | 3.10 | 0.00 |
| Nov | 2.19 | 2.13 | 0.06 |
| Dec | 1.84 | 1.76 | 0.08 |
32.02 | 31.36 | 0.66 |