| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.66 | 0.70 | -0.04 |
| Feb | 0.76 | 0.79 | -0.03 |
| Mar | 1.54 | 1.56 | -0.02 |
| Apr | 2.94 | 3.00 | -0.06 |
| May | 3.98 | 4.09 | -0.11 |
| Jun | 4.65 | 4.73 | -0.08 |
| Jul | 3.80 | 3.70 | 0.10 |
| Aug | 3.96 | 3.60 | 0.36 |
| Sep | 3.12 | 3.03 | 0.09 |
| Oct | 2.26 | 2.30 | -0.04 |
| Nov | 1.39 | 1.28 | 0.11 |
| Dec | 0.86 | 0.97 | -0.11 |
29.92 | 29.75 | 0.17 |