| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.40 | 3.38 | 0.02 |
| Feb | 2.76 | 2.78 | -0.02 |
| Mar | 4.10 | 4.00 | 0.10 |
| Apr | 3.79 | 3.70 | 0.09 |
| May | 3.95 | 3.90 | 0.05 |
| Jun | 4.31 | 4.15 | 0.16 |
| Jul | 4.73 | 4.70 | 0.03 |
| Aug | 4.62 | 4.60 | 0.02 |
| Sep | 4.50 | 4.57 | -0.07 |
| Oct | 4.20 | 4.22 | -0.02 |
| Nov | 3.27 | 3.25 | 0.02 |
| Dec | 4.29 | 4.27 | 0.02 |
47.92 | 47.52 | 0.40 |