| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.02 | 1.04 | -0.02 |
| Feb | 0.76 | 0.77 | -0.01 |
| Mar | 0.77 | 0.80 | -0.03 |
| Apr | 0.71 | 0.70 | 0.01 |
| May | 0.76 | 0.71 | 0.05 |
| Jun | 0.58 | 0.61 | -0.03 |
| Jul | 0.27 | 0.26 | 0.01 |
| Aug | 0.18 | 0.18 | 0.00 |
| Sep | 0.29 | 0.27 | 0.02 |
| Oct | 0.78 | 0.76 | 0.02 |
| Nov | 1.00 | 0.95 | 0.05 |
| Dec | 1.22 | 1.15 | 0.07 |
8.34 | 8.20 | 0.14 |