| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.77 | 0.91 | -0.14 |
| Feb | 0.80 | 0.91 | -0.11 |
| Mar | 1.59 | 1.64 | -0.05 |
| Apr | 2.83 | 3.14 | -0.31 |
| May | 4.11 | 4.30 | -0.19 |
| Jun | 4.76 | 5.01 | -0.25 |
| Jul | 4.13 | 4.26 | -0.13 |
| Aug | 4.62 | 4.61 | 0.01 |
| Sep | 3.31 | 3.40 | -0.09 |
| Oct | 2.80 | 3.06 | -0.26 |
| Nov | 1.61 | 1.75 | -0.14 |
| Dec | 1.13 | 1.27 | -0.14 |
32.46 | 34.26 | -1.80 |