| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.38 | 0.41 | -0.03 |
| Feb | 0.54 | 0.64 | -0.10 |
| Mar | 0.85 | 0.98 | -0.13 |
| Apr | 1.86 | 2.00 | -0.14 |
| May | 2.85 | 3.16 | -0.31 |
| Jun | 2.90 | 3.09 | -0.19 |
| Jul | 2.63 | 2.78 | -0.15 |
| Aug | 1.83 | 1.99 | -0.16 |
| Sep | 1.26 | 1.33 | -0.07 |
| Oct | 1.28 | 1.36 | -0.08 |
| Nov | 0.48 | 0.56 | -0.08 |
| Dec | 0.43 | 0.47 | -0.04 |
17.29 | 18.77 | -1.48 |