| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.27 | 1.17 | 0.10 |
| Feb | 1.39 | 1.34 | 0.05 |
| Mar | 2.23 | 2.09 | 0.14 |
| Apr | 3.86 | 3.84 | 0.02 |
| May | 4.54 | 4.56 | -0.02 |
| Jun | 5.90 | 5.94 | -0.04 |
| Jul | 4.47 | 4.77 | -0.30 |
| Aug | 3.95 | 4.06 | -0.11 |
| Sep | 3.79 | 3.74 | 0.05 |
| Oct | 2.99 | 2.99 | 0.00 |
| Nov | 2.16 | 2.17 | -0.01 |
| Dec | 1.72 | 1.62 | 0.10 |
38.27 | 38.29 | -0.02 |