| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.29 | 0.30 | -0.01 |
| Feb | 0.45 | 0.37 | 0.08 |
| Mar | 0.91 | 0.88 | 0.03 |
| Apr | 1.93 | 1.86 | 0.07 |
| May | 2.78 | 2.84 | -0.06 |
| Jun | 2.96 | 3.17 | -0.21 |
| Jul | 2.60 | 2.62 | -0.02 |
| Aug | 2.23 | 2.38 | -0.15 |
| Sep | 1.45 | 1.45 | 0.00 |
| Oct | 1.34 | 1.37 | -0.03 |
| Nov | 0.46 | 0.46 | 0.00 |
| Dec | 0.35 | 0.33 | 0.02 |
17.75 | 18.03 | -0.28 |