| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.20 | 3.42 | -0.22 |
| Feb | 2.49 | 2.69 | -0.20 |
| Mar | 3.62 | 3.89 | -0.27 |
| Apr | 3.43 | 3.83 | -0.40 |
| May | 3.61 | 3.76 | -0.15 |
| Jun | 4.24 | 4.80 | -0.56 |
| Jul | 4.73 | 5.00 | -0.27 |
| Aug | 4.37 | 4.30 | 0.07 |
| Sep | 4.67 | 4.83 | -0.16 |
| Oct | 3.98 | 4.38 | -0.40 |
| Nov | 3.08 | 3.31 | -0.23 |
| Dec | 3.64 | 3.99 | -0.35 |
45.06 | 48.20 | -3.14 |