| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.46 | 0.51 | -0.05 |
| Feb | 0.60 | 0.63 | -0.03 |
| Mar | 1.00 | 0.99 | 0.01 |
| Apr | 1.91 | 2.00 | -0.09 |
| May | 3.55 | 3.31 | 0.24 |
| Jun | 3.10 | 3.12 | -0.02 |
| Jul | 2.43 | 2.49 | -0.06 |
| Aug | 1.48 | 1.62 | -0.14 |
| Sep | 1.19 | 1.14 | 0.05 |
| Oct | 1.49 | 1.53 | -0.04 |
| Nov | 0.58 | 0.63 | -0.05 |
| Dec | 0.57 | 0.60 | -0.03 |
18.36 | 18.57 | -0.21 |