| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.20 | 1.18 | 0.02 |
| Feb | 1.52 | 1.49 | 0.03 |
| Mar | 2.19 | 2.23 | -0.04 |
| Apr | 3.63 | 3.79 | -0.16 |
| May | 5.01 | 5.00 | 0.01 |
| Jun | 5.11 | 5.35 | -0.24 |
| Jul | 4.10 | 4.07 | 0.03 |
| Aug | 4.22 | 4.30 | -0.08 |
| Sep | 3.44 | 3.52 | -0.08 |
| Oct | 2.84 | 2.69 | 0.15 |
| Nov | 2.11 | 2.18 | -0.07 |
| Dec | 1.58 | 1.55 | 0.03 |
36.95 | 37.35 | -0.40 |