| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.65 | 0.65 | 0.00 |
| Feb | 0.84 | 0.85 | -0.01 |
| Mar | 1.44 | 1.44 | 0.00 |
| Apr | 2.48 | 2.44 | 0.04 |
| May | 4.25 | 4.29 | -0.04 |
| Jun | 3.73 | 3.83 | -0.10 |
| Jul | 4.41 | 4.41 | 0.00 |
| Aug | 3.58 | 3.45 | 0.13 |
| Sep | 2.50 | 2.53 | -0.03 |
| Oct | 1.92 | 1.92 | 0.00 |
| Nov | 1.14 | 1.20 | -0.06 |
| Dec | 0.99 | 1.00 | -0.01 |
27.93 | 28.01 | -0.08 |