| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.62 | 0.56 | 0.06 |
| Feb | 0.83 | 0.81 | 0.02 |
| Mar | 1.51 | 1.48 | 0.03 |
| Apr | 3.17 | 3.14 | 0.03 |
| May | 3.81 | 3.88 | -0.07 |
| Jun | 4.03 | 4.04 | -0.01 |
| Jul | 3.22 | 3.19 | 0.03 |
| Aug | 3.23 | 3.19 | 0.04 |
| Sep | 2.94 | 2.87 | 0.07 |
| Oct | 2.47 | 2.44 | 0.03 |
| Nov | 1.15 | 1.11 | 0.04 |
| Dec | 0.86 | 0.85 | 0.01 |
27.84 | 27.56 | 0.28 |