| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.59 | 0.50 | 0.09 |
| Feb | 0.69 | 0.58 | 0.11 |
| Mar | 1.28 | 1.19 | 0.09 |
| Apr | 2.45 | 2.31 | 0.14 |
| May | 3.50 | 3.42 | 0.08 |
| Jun | 4.15 | 4.23 | -0.08 |
| Jul | 3.69 | 3.52 | 0.17 |
| Aug | 3.28 | 3.16 | 0.12 |
| Sep | 2.92 | 2.98 | -0.06 |
| Oct | 2.07 | 2.05 | 0.02 |
| Nov | 0.99 | 0.90 | 0.09 |
| Dec | 0.79 | 0.71 | 0.08 |
26.40 | 25.55 | 0.85 |