| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.73 | 0.69 | 0.04 |
| Feb | 0.78 | 0.77 | 0.01 |
| Mar | 1.43 | 1.38 | 0.05 |
| Apr | 2.56 | 2.51 | 0.05 |
| May | 3.40 | 3.31 | 0.09 |
| Jun | 4.57 | 4.65 | -0.08 |
| Jul | 3.84 | 3.90 | -0.06 |
| Aug | 3.76 | 4.02 | -0.26 |
| Sep | 2.90 | 2.93 | -0.03 |
| Oct | 2.38 | 2.44 | -0.06 |
| Nov | 1.32 | 1.28 | 0.04 |
| Dec | 0.87 | 0.88 | -0.01 |
28.54 | 28.76 | -0.22 |