| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.63 | 0.65 | -0.02 |
| Feb | 0.81 | 0.85 | -0.04 |
| Mar | 1.42 | 1.42 | 0.00 |
| Apr | 2.46 | 2.45 | 0.01 |
| May | 4.10 | 4.25 | -0.15 |
| Jun | 3.65 | 3.80 | -0.15 |
| Jul | 4.40 | 4.50 | -0.10 |
| Aug | 3.51 | 3.41 | 0.10 |
| Sep | 2.45 | 2.54 | -0.09 |
| Oct | 1.92 | 1.92 | 0.00 |
| Nov | 1.15 | 1.21 | -0.06 |
| Dec | 0.95 | 1.00 | -0.05 |
27.45 | 28.00 | -0.55 |