| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.66 | 0.67 | -0.01 |
| Feb | 0.69 | 0.68 | 0.01 |
| Mar | 1.23 | 1.19 | 0.04 |
| Apr | 2.22 | 2.14 | 0.08 |
| May | 3.29 | 3.39 | -0.10 |
| Jun | 4.37 | 4.21 | 0.16 |
| Jul | 4.27 | 4.16 | 0.11 |
| Aug | 3.25 | 3.03 | 0.22 |
| Sep | 3.00 | 2.74 | 0.26 |
| Oct | 2.64 | 2.65 | -0.01 |
| Nov | 1.17 | 1.08 | 0.09 |
| Dec | 0.82 | 0.79 | 0.03 |
27.61 | 26.73 | 0.88 |