| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.27 | 1.25 | 0.02 |
| Feb | 1.30 | 1.31 | -0.01 |
| Mar | 2.06 | 2.02 | 0.04 |
| Apr | 3.76 | 3.81 | -0.05 |
| May | 4.41 | 4.44 | -0.03 |
| Jun | 5.53 | 5.64 | -0.11 |
| Jul | 4.92 | 4.70 | 0.22 |
| Aug | 3.99 | 3.96 | 0.03 |
| Sep | 4.02 | 3.81 | 0.21 |
| Oct | 2.83 | 2.86 | -0.03 |
| Nov | 2.21 | 2.17 | 0.04 |
| Dec | 1.60 | 1.64 | -0.04 |
37.90 | 37.61 | 0.29 |