| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.57 | 0.53 | 0.04 |
| Feb | 0.81 | 0.74 | 0.07 |
| Mar | 1.35 | 1.29 | 0.06 |
| Apr | 2.17 | 2.02 | 0.15 |
| May | 3.86 | 3.64 | 0.22 |
| Jun | 3.43 | 3.20 | 0.23 |
| Jul | 3.96 | 3.98 | -0.02 |
| Aug | 3.44 | 3.27 | 0.17 |
| Sep | 2.05 | 2.21 | -0.16 |
| Oct | 1.77 | 1.73 | 0.04 |
| Nov | 0.95 | 0.92 | 0.03 |
| Dec | 0.82 | 0.83 | -0.01 |
25.18 | 24.36 | 0.82 |