| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.61 | 0.67 | -0.06 |
| Feb | 0.78 | 0.82 | -0.04 |
| Mar | 1.41 | 1.47 | -0.06 |
| Apr | 2.80 | 2.91 | -0.11 |
| May | 3.70 | 3.73 | -0.03 |
| Jun | 4.63 | 4.60 | 0.03 |
| Jul | 3.47 | 3.46 | 0.01 |
| Aug | 3.26 | 3.40 | -0.14 |
| Sep | 2.97 | 3.00 | -0.03 |
| Oct | 2.24 | 2.25 | -0.01 |
| Nov | 1.20 | 1.31 | -0.11 |
| Dec | 0.82 | 0.92 | -0.10 |
27.89 | 28.54 | -0.65 |