| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.49 | 0.51 | -0.02 |
| Feb | 0.58 | 0.59 | -0.01 |
| Mar | 1.19 | 1.26 | -0.07 |
| Apr | 1.62 | 1.79 | -0.17 |
| May | 3.01 | 3.15 | -0.14 |
| Jun | 3.08 | 3.16 | -0.08 |
| Jul | 3.48 | 3.19 | 0.29 |
| Aug | 2.89 | 3.04 | -0.15 |
| Sep | 1.51 | 1.50 | 0.01 |
| Oct | 1.62 | 1.67 | -0.05 |
| Nov | 0.64 | 0.64 | 0.00 |
| Dec | 0.70 | 0.81 | -0.11 |
20.81 | 21.31 | -0.50 |