| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.74 | 3.86 | -0.12 |
| Feb | 3.50 | 3.60 | -0.10 |
| Mar | 3.82 | 4.14 | -0.32 |
| Apr | 2.97 | 3.06 | -0.09 |
| May | 3.29 | 3.40 | -0.11 |
| Jun | 4.82 | 4.86 | -0.04 |
| Jul | 4.58 | 4.78 | -0.20 |
| Aug | 4.54 | 4.90 | -0.36 |
| Sep | 3.98 | 4.18 | -0.20 |
| Oct | 3.19 | 3.49 | -0.30 |
| Nov | 2.92 | 3.19 | -0.27 |
| Dec | 3.81 | 3.95 | -0.14 |
45.16 | 47.41 | -2.25 |