| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.58 | 2.80 | -0.22 |
| Feb | 1.74 | 2.02 | -0.28 |
| Mar | 1.99 | 2.10 | -0.11 |
| Apr | 1.73 | 1.59 | 0.14 |
| May | 1.74 | 1.72 | 0.02 |
| Jun | 0.97 | 1.00 | -0.03 |
| Jul | 0.28 | 0.29 | -0.01 |
| Aug | 0.26 | 0.28 | -0.02 |
| Sep | 0.55 | 0.53 | 0.02 |
| Oct | 1.21 | 1.25 | -0.04 |
| Nov | 2.04 | 2.20 | -0.16 |
| Dec | 2.83 | 3.35 | -0.52 |
17.92 | 19.13 | -1.21 |