| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.05 | 3.06 | -0.01 |
| Feb | 2.30 | 2.34 | -0.04 |
| Mar | 3.26 | 3.32 | -0.06 |
| Apr | 4.19 | 4.17 | 0.02 |
| May | 4.53 | 4.49 | 0.04 |
| Jun | 4.24 | 4.30 | -0.06 |
| Jul | 4.12 | 4.09 | 0.03 |
| Aug | 3.06 | 3.00 | 0.06 |
| Sep | 3.10 | 3.16 | -0.06 |
| Oct | 2.84 | 2.84 | 0.00 |
| Nov | 3.03 | 3.00 | 0.03 |
| Dec | 2.96 | 2.99 | -0.03 |
40.68 | 40.76 | -0.08 |