| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.54 | 3.56 | -0.02 |
| Feb | 3.22 | 3.13 | 0.09 |
| Mar | 3.98 | 3.78 | 0.20 |
| Apr | 3.79 | 3.50 | 0.29 |
| May | 3.61 | 3.56 | 0.05 |
| Jun | 4.26 | 4.27 | -0.01 |
| Jul | 3.79 | 3.62 | 0.17 |
| Aug | 4.17 | 4.06 | 0.11 |
| Sep | 3.74 | 3.83 | -0.09 |
| Oct | 3.21 | 3.19 | 0.02 |
| Nov | 3.23 | 2.99 | 0.24 |
| Dec | 3.74 | 3.81 | -0.07 |
44.28 | 43.30 | 0.98 |