| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.64 | 1.83 | -0.19 |
| Feb | 1.50 | 1.68 | -0.18 |
| Mar | 1.50 | 1.53 | -0.03 |
| Apr | 2.08 | 2.00 | 0.08 |
| May | 1.88 | 1.81 | 0.07 |
| Jun | 1.07 | 1.23 | -0.16 |
| Jul | 1.43 | 1.73 | -0.30 |
| Aug | 1.36 | 1.72 | -0.36 |
| Sep | 1.55 | 1.70 | -0.15 |
| Oct | 1.48 | 1.33 | 0.15 |
| Nov | 1.47 | 1.38 | 0.09 |
| Dec | 1.45 | 1.31 | 0.14 |
18.41 | 19.25 | -0.84 |