| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.54 | 0.59 | -0.05 |
| Feb | 0.73 | 0.78 | -0.05 |
| Mar | 1.38 | 1.40 | -0.02 |
| Apr | 2.74 | 2.80 | -0.06 |
| May | 4.51 | 4.49 | 0.02 |
| Jun | 3.99 | 3.70 | 0.29 |
| Jul | 3.61 | 3.54 | 0.07 |
| Aug | 3.33 | 3.40 | -0.07 |
| Sep | 2.00 | 2.06 | -0.06 |
| Oct | 2.14 | 2.05 | 0.09 |
| Nov | 1.21 | 1.22 | -0.01 |
| Dec | 0.84 | 0.89 | -0.05 |
27.02 | 26.92 | 0.10 |