| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.33 | 3.46 | -0.13 |
| Feb | 2.80 | 2.86 | -0.06 |
| Mar | 4.07 | 4.04 | 0.03 |
| Apr | 3.90 | 4.01 | -0.11 |
| May | 3.83 | 3.75 | 0.08 |
| Jun | 4.34 | 4.49 | -0.15 |
| Jul | 4.40 | 4.40 | 0.00 |
| Aug | 4.43 | 4.58 | -0.15 |
| Sep | 4.23 | 4.27 | -0.04 |
| Oct | 4.29 | 4.28 | 0.01 |
| Nov | 3.57 | 3.50 | 0.07 |
| Dec | 4.19 | 4.24 | -0.05 |
47.38 | 47.88 | -0.50 |