| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.54 | 0.59 | -0.05 |
| Feb | 0.76 | 0.78 | -0.02 |
| Mar | 1.43 | 1.41 | 0.02 |
| Apr | 2.82 | 2.93 | -0.11 |
| May | 3.65 | 3.70 | -0.05 |
| Jun | 4.42 | 4.37 | 0.05 |
| Jul | 3.33 | 3.33 | 0.00 |
| Aug | 3.36 | 3.38 | -0.02 |
| Sep | 2.92 | 2.91 | 0.01 |
| Oct | 2.20 | 2.20 | 0.00 |
| Nov | 1.14 | 1.18 | -0.04 |
| Dec | 0.80 | 0.86 | -0.06 |
27.37 | 27.64 | -0.27 |