| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.48 | 1.51 | -0.03 |
| Feb | 1.55 | 1.58 | -0.03 |
| Mar | 2.17 | 2.12 | 0.05 |
| Apr | 3.73 | 3.80 | -0.07 |
| May | 4.20 | 4.29 | -0.09 |
| Jun | 5.58 | 5.42 | 0.16 |
| Jul | 4.37 | 4.20 | 0.17 |
| Aug | 4.14 | 4.21 | -0.07 |
| Sep | 3.63 | 3.61 | 0.02 |
| Oct | 2.90 | 2.90 | 0.00 |
| Nov | 2.34 | 2.28 | 0.06 |
| Dec | 1.73 | 1.77 | -0.04 |
37.82 | 37.69 | 0.13 |