| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.25 | 2.20 | 0.05 |
| Feb | 1.91 | 1.94 | -0.03 |
| Mar | 2.62 | 2.67 | -0.05 |
| Apr | 4.01 | 3.83 | 0.18 |
| May | 4.43 | 4.40 | 0.03 |
| Jun | 4.60 | 4.43 | 0.17 |
| Jul | 4.22 | 4.04 | 0.18 |
| Aug | 3.45 | 3.23 | 0.22 |
| Sep | 3.16 | 3.09 | 0.07 |
| Oct | 3.24 | 3.20 | 0.04 |
| Nov | 3.06 | 2.95 | 0.11 |
| Dec | 2.29 | 2.30 | -0.01 |
39.24 | 38.28 | 0.96 |