| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.03 | 1.00 | 0.03 |
| Feb | 1.04 | 1.06 | -0.02 |
| Mar | 1.92 | 1.88 | 0.04 |
| Apr | 3.73 | 3.57 | 0.16 |
| May | 4.53 | 4.46 | 0.07 |
| Jun | 5.50 | 5.43 | 0.07 |
| Jul | 4.27 | 3.95 | 0.32 |
| Aug | 4.21 | 4.27 | -0.06 |
| Sep | 3.67 | 3.56 | 0.11 |
| Oct | 2.59 | 2.53 | 0.06 |
| Nov | 1.83 | 1.72 | 0.11 |
| Dec | 1.25 | 1.26 | -0.01 |
35.57 | 34.69 | 0.88 |