| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.49 | 0.46 | 0.03 |
| Feb | 0.60 | 0.51 | 0.09 |
| Mar | 1.16 | 1.20 | -0.04 |
| Apr | 2.13 | 2.00 | 0.13 |
| May | 2.46 | 2.31 | 0.15 |
| Jun | 2.23 | 2.16 | 0.07 |
| Jul | 3.44 | 3.07 | 0.37 |
| Aug | 2.87 | 3.13 | -0.26 |
| Sep | 1.42 | 1.41 | 0.01 |
| Oct | 1.09 | 1.07 | 0.02 |
| Nov | 0.74 | 0.68 | 0.06 |
| Dec | 0.50 | 0.57 | -0.07 |
19.13 | 18.57 | 0.56 |