| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.67 | 0.66 | 0.01 |
| Feb | 0.67 | 0.70 | -0.03 |
| Mar | 1.28 | 1.26 | 0.02 |
| Apr | 2.25 | 2.28 | -0.03 |
| May | 3.35 | 3.42 | -0.07 |
| Jun | 4.25 | 4.29 | -0.04 |
| Jul | 4.30 | 4.24 | 0.06 |
| Aug | 3.48 | 3.34 | 0.14 |
| Sep | 2.96 | 2.87 | 0.09 |
| Oct | 2.64 | 2.69 | -0.05 |
| Nov | 1.21 | 1.17 | 0.04 |
| Dec | 0.87 | 0.91 | -0.04 |
27.93 | 27.83 | 0.10 |