| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.42 | 0.47 | -0.05 |
| Feb | 0.50 | 0.56 | -0.06 |
| Mar | 1.07 | 1.20 | -0.13 |
| Apr | 1.60 | 1.71 | -0.11 |
| May | 2.69 | 2.93 | -0.24 |
| Jun | 2.98 | 2.97 | 0.01 |
| Jul | 3.30 | 3.09 | 0.21 |
| Aug | 2.74 | 3.04 | -0.30 |
| Sep | 1.44 | 1.48 | -0.04 |
| Oct | 1.43 | 1.51 | -0.08 |
| Nov | 0.58 | 0.61 | -0.03 |
| Dec | 0.56 | 0.78 | -0.22 |
19.31 | 20.35 | -1.04 |