| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.75 | 3.13 | -0.38 |
| Feb | 2.06 | 2.18 | -0.12 |
| Mar | 2.06 | 2.21 | -0.15 |
| Apr | 1.80 | 2.10 | -0.30 |
| May | 1.49 | 1.67 | -0.18 |
| Jun | 0.79 | 0.88 | -0.09 |
| Jul | 0.37 | 0.40 | -0.03 |
| Aug | 0.33 | 0.28 | 0.05 |
| Sep | 0.48 | 0.61 | -0.13 |
| Oct | 1.38 | 1.69 | -0.31 |
| Nov | 2.64 | 2.93 | -0.29 |
| Dec | 3.58 | 4.19 | -0.61 |
19.73 | 22.27 | -2.54 |