| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.56 | 3.66 | -0.10 |
| Feb | 2.83 | 2.93 | -0.10 |
| Mar | 4.09 | 4.25 | -0.16 |
| Apr | 3.88 | 4.00 | -0.12 |
| May | 4.17 | 4.18 | -0.01 |
| Jun | 4.49 | 4.57 | -0.08 |
| Jul | 5.03 | 5.15 | -0.12 |
| Aug | 4.50 | 4.43 | 0.07 |
| Sep | 4.50 | 4.31 | 0.19 |
| Oct | 4.27 | 4.26 | 0.01 |
| Nov | 3.40 | 3.36 | 0.04 |
| Dec | 4.30 | 4.46 | -0.16 |
49.02 | 49.56 | -0.54 |