| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.78 | 3.65 | 0.13 |
| Feb | 3.34 | 3.27 | 0.07 |
| Mar | 3.97 | 4.02 | -0.05 |
| Apr | 3.49 | 3.48 | 0.01 |
| May | 4.18 | 4.42 | -0.24 |
| Jun | 5.00 | 4.92 | 0.08 |
| Jul | 5.49 | 5.26 | 0.23 |
| Aug | 6.17 | 5.76 | 0.41 |
| Sep | 6.50 | 6.31 | 0.19 |
| Oct | 3.75 | 4.01 | -0.26 |
| Nov | 3.26 | 3.29 | -0.03 |
| Dec | 3.60 | 3.45 | 0.15 |
52.53 | 51.84 | 0.69 |