| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.79 | -0.05 |
| Feb | 0.74 | 0.75 | -0.01 |
| Mar | 1.36 | 1.40 | -0.04 |
| Apr | 2.26 | 2.40 | -0.14 |
| May | 3.51 | 3.51 | 0.00 |
| Jun | 4.38 | 4.43 | -0.05 |
| Jul | 4.53 | 4.48 | 0.05 |
| Aug | 3.51 | 3.38 | 0.13 |
| Sep | 3.03 | 2.94 | 0.09 |
| Oct | 2.84 | 2.76 | 0.08 |
| Nov | 1.43 | 1.45 | -0.02 |
| Dec | 0.98 | 1.04 | -0.06 |
29.31 | 29.33 | -0.02 |