| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.27 | 2.36 | -0.09 |
| Feb | 1.97 | 2.07 | -0.10 |
| Mar | 2.77 | 2.76 | 0.01 |
| Apr | 4.08 | 4.02 | 0.06 |
| May | 4.42 | 4.41 | 0.01 |
| Jun | 4.74 | 4.65 | 0.09 |
| Jul | 4.22 | 4.15 | 0.07 |
| Aug | 3.25 | 3.16 | 0.09 |
| Sep | 3.04 | 3.06 | -0.02 |
| Oct | 3.34 | 3.27 | 0.07 |
| Nov | 3.23 | 3.23 | 0.00 |
| Dec | 2.37 | 2.42 | -0.05 |
39.70 | 39.56 | 0.14 |