| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.64 | 0.65 | -0.01 |
| Feb | 0.89 | 0.93 | -0.04 |
| Mar | 1.49 | 1.48 | 0.01 |
| Apr | 2.26 | 2.23 | 0.03 |
| May | 4.40 | 4.31 | 0.09 |
| Jun | 3.61 | 3.63 | -0.02 |
| Jul | 3.99 | 3.91 | 0.08 |
| Aug | 3.63 | 3.81 | -0.18 |
| Sep | 2.29 | 2.30 | -0.01 |
| Oct | 1.82 | 1.92 | -0.10 |
| Nov | 1.06 | 1.06 | 0.00 |
| Dec | 0.95 | 0.96 | -0.01 |
27.03 | 27.19 | -0.16 |