| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.84 | 2.17 | -0.33 |
| Feb | 1.80 | 1.88 | -0.08 |
| Mar | 1.35 | 1.58 | -0.23 |
| Apr | 1.22 | 1.33 | -0.11 |
| May | 1.27 | 1.38 | -0.11 |
| Jun | 0.63 | 0.70 | -0.07 |
| Jul | 2.24 | 2.13 | 0.11 |
| Aug | 2.41 | 2.76 | -0.35 |
| Sep | 2.27 | 2.48 | -0.21 |
| Oct | 1.78 | 1.94 | -0.16 |
| Nov | 1.60 | 1.61 | -0.01 |
| Dec | 1.73 | 1.87 | -0.14 |
20.14 | 21.83 | -1.69 |