| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.69 | 0.65 | 0.04 |
| Feb | 0.69 | 0.71 | -0.02 |
| Mar | 1.32 | 1.29 | 0.03 |
| Apr | 2.29 | 2.32 | -0.03 |
| May | 3.40 | 3.40 | 0.00 |
| Jun | 4.32 | 4.33 | -0.01 |
| Jul | 4.34 | 4.20 | 0.14 |
| Aug | 3.54 | 3.41 | 0.13 |
| Sep | 2.99 | 2.87 | 0.12 |
| Oct | 2.67 | 2.69 | -0.02 |
| Nov | 1.24 | 1.18 | 0.06 |
| Dec | 0.88 | 0.91 | -0.03 |
28.37 | 27.96 | 0.41 |