| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.54 | 0.50 | 0.04 |
| Feb | 0.60 | 0.54 | 0.06 |
| Mar | 1.28 | 1.08 | 0.20 |
| Apr | 2.08 | 1.93 | 0.15 |
| May | 2.31 | 2.11 | 0.20 |
| Jun | 2.11 | 2.16 | -0.05 |
| Jul | 3.36 | 2.91 | 0.45 |
| Aug | 2.93 | 3.41 | -0.48 |
| Sep | 1.43 | 1.69 | -0.26 |
| Oct | 1.01 | 0.83 | 0.18 |
| Nov | 0.68 | 0.66 | 0.02 |
| Dec | 0.52 | 0.48 | 0.04 |
18.85 | 18.30 | 0.55 |