| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.69 | 0.79 | -0.10 |
| Feb | 0.80 | 0.88 | -0.08 |
| Mar | 1.44 | 1.56 | -0.12 |
| Apr | 2.76 | 2.88 | -0.12 |
| May | 4.10 | 4.20 | -0.10 |
| Jun | 4.38 | 4.40 | -0.02 |
| Jul | 4.10 | 4.37 | -0.27 |
| Aug | 3.98 | 4.04 | -0.06 |
| Sep | 3.14 | 3.33 | -0.19 |
| Oct | 2.80 | 2.77 | 0.03 |
| Nov | 1.51 | 1.62 | -0.11 |
| Dec | 1.01 | 1.14 | -0.13 |
30.71 | 31.98 | -1.27 |