| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.48 | 3.49 | -0.01 |
| Feb | 3.03 | 2.98 | 0.05 |
| Mar | 4.13 | 4.17 | -0.04 |
| Apr | 3.41 | 3.47 | -0.06 |
| May | 3.60 | 3.66 | -0.06 |
| Jun | 3.86 | 3.99 | -0.13 |
| Jul | 4.43 | 4.31 | 0.12 |
| Aug | 4.78 | 4.95 | -0.17 |
| Sep | 4.24 | 4.43 | -0.19 |
| Oct | 4.02 | 4.11 | -0.09 |
| Nov | 3.23 | 3.26 | -0.03 |
| Dec | 3.73 | 3.88 | -0.15 |
45.94 | 46.70 | -0.76 |