| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.76 | 0.86 | -0.10 |
| Feb | 0.72 | 0.74 | -0.02 |
| Mar | 1.20 | 1.18 | 0.02 |
| Apr | 1.93 | 1.98 | -0.05 |
| May | 3.05 | 3.14 | -0.09 |
| Jun | 4.46 | 4.45 | 0.01 |
| Jul | 3.97 | 4.10 | -0.13 |
| Aug | 3.24 | 3.32 | -0.08 |
| Sep | 2.97 | 3.17 | -0.20 |
| Oct | 2.66 | 2.65 | 0.01 |
| Nov | 1.35 | 1.40 | -0.05 |
| Dec | 0.99 | 1.07 | -0.08 |
27.30 | 28.06 | -0.76 |