| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.72 | 0.82 | -0.10 |
| Feb | 0.80 | 0.85 | -0.05 |
| Mar | 1.51 | 1.55 | -0.04 |
| Apr | 2.76 | 2.86 | -0.10 |
| May | 3.91 | 4.21 | -0.30 |
| Jun | 4.80 | 4.93 | -0.13 |
| Jul | 3.86 | 3.80 | 0.06 |
| Aug | 3.88 | 4.30 | -0.42 |
| Sep | 3.10 | 3.14 | -0.04 |
| Oct | 2.36 | 2.34 | 0.02 |
| Nov | 1.43 | 1.46 | -0.03 |
| Dec | 1.03 | 1.12 | -0.09 |
30.16 | 31.38 | -1.22 |