| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.71 | 0.70 | 0.01 |
| Feb | 0.79 | 0.82 | -0.03 |
| Mar | 1.47 | 1.52 | -0.05 |
| Apr | 2.66 | 2.69 | -0.03 |
| May | 3.94 | 3.95 | -0.01 |
| Jun | 4.23 | 4.22 | 0.01 |
| Jul | 4.13 | 4.14 | -0.01 |
| Aug | 3.92 | 3.93 | -0.01 |
| Sep | 3.12 | 3.09 | 0.03 |
| Oct | 2.73 | 2.76 | -0.03 |
| Nov | 1.46 | 1.50 | -0.04 |
| Dec | 0.98 | 1.02 | -0.04 |
30.14 | 30.34 | -0.20 |