| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.15 | 1.00 | 0.15 |
| Feb | 0.88 | 0.79 | 0.09 |
| Mar | 1.13 | 1.10 | 0.03 |
| Apr | 1.68 | 1.74 | -0.06 |
| May | 3.11 | 3.09 | 0.02 |
| Jun | 4.06 | 4.02 | 0.04 |
| Jul | 3.86 | 3.98 | -0.12 |
| Aug | 3.15 | 3.16 | -0.01 |
| Sep | 3.25 | 3.32 | -0.07 |
| Oct | 2.50 | 2.45 | 0.05 |
| Nov | 1.57 | 1.53 | 0.04 |
| Dec | 1.23 | 1.15 | 0.08 |
27.57 | 27.33 | 0.24 |