| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.73 | 0.70 | 0.03 |
| Feb | 1.08 | 0.98 | 0.10 |
| Mar | 1.94 | 1.90 | 0.04 |
| Apr | 2.36 | 2.42 | -0.06 |
| May | 3.93 | 4.15 | -0.22 |
| Jun | 4.03 | 4.00 | 0.03 |
| Jul | 3.39 | 3.41 | -0.02 |
| Aug | 3.48 | 3.41 | 0.07 |
| Sep | 2.13 | 2.27 | -0.14 |
| Oct | 2.35 | 2.30 | 0.05 |
| Nov | 1.21 | 1.13 | 0.08 |
| Dec | 1.01 | 1.03 | -0.02 |
27.64 | 27.70 | -0.06 |