| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.72 | 0.02 |
| Feb | 0.80 | 0.87 | -0.07 |
| Mar | 1.43 | 1.49 | -0.06 |
| Apr | 2.61 | 2.61 | 0.00 |
| May | 3.88 | 3.67 | 0.21 |
| Jun | 4.43 | 4.34 | 0.09 |
| Jul | 4.34 | 4.60 | -0.26 |
| Aug | 4.04 | 4.05 | -0.01 |
| Sep | 3.25 | 3.20 | 0.05 |
| Oct | 2.88 | 2.95 | -0.07 |
| Nov | 1.60 | 1.57 | 0.03 |
| Dec | 1.06 | 1.15 | -0.09 |
31.06 | 31.22 | -0.16 |