| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.80 | 0.97 | -0.17 |
| Feb | 0.78 | 0.96 | -0.18 |
| Mar | 1.62 | 1.74 | -0.12 |
| Apr | 2.91 | 2.98 | -0.07 |
| May | 4.10 | 4.23 | -0.13 |
| Jun | 4.64 | 4.92 | -0.28 |
| Jul | 4.17 | 4.30 | -0.13 |
| Aug | 4.51 | 4.40 | 0.11 |
| Sep | 3.32 | 3.27 | 0.05 |
| Oct | 2.65 | 2.80 | -0.15 |
| Nov | 1.56 | 1.70 | -0.14 |
| Dec | 1.14 | 1.33 | -0.19 |
32.20 | 33.60 | -1.40 |