| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.80 | 0.92 | -0.12 |
| Feb | 0.81 | 0.91 | -0.10 |
| Mar | 1.61 | 1.65 | -0.04 |
| Apr | 2.86 | 3.14 | -0.28 |
| May | 4.14 | 4.30 | -0.16 |
| Jun | 4.75 | 5.01 | -0.26 |
| Jul | 4.13 | 4.25 | -0.12 |
| Aug | 4.64 | 4.61 | 0.03 |
| Sep | 3.35 | 3.39 | -0.04 |
| Oct | 2.79 | 3.06 | -0.27 |
| Nov | 1.63 | 1.75 | -0.12 |
| Dec | 1.15 | 1.27 | -0.12 |
32.66 | 34.26 | -1.60 |