| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.15 | 3.37 | -0.22 |
| Feb | 2.57 | 2.63 | -0.06 |
| Mar | 2.84 | 2.87 | -0.03 |
| Apr | 3.37 | 3.57 | -0.20 |
| May | 3.54 | 3.79 | -0.25 |
| Jun | 4.10 | 4.34 | -0.24 |
| Jul | 4.00 | 4.50 | -0.50 |
| Aug | 3.80 | 4.20 | -0.40 |
| Sep | 4.16 | 3.95 | 0.21 |
| Oct | 4.56 | 4.79 | -0.23 |
| Nov | 3.64 | 3.72 | -0.08 |
| Dec | 3.43 | 3.54 | -0.11 |
43.16 | 45.27 | -2.11 |