| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.42 | 3.43 | -0.01 |
| Feb | 3.33 | 3.44 | -0.11 |
| Mar | 4.07 | 4.06 | 0.01 |
| Apr | 4.40 | 4.41 | -0.01 |
| May | 3.75 | 3.61 | 0.14 |
| Jun | 4.47 | 4.58 | -0.11 |
| Jul | 3.64 | 3.73 | -0.09 |
| Aug | 3.58 | 3.61 | -0.03 |
| Sep | 3.98 | 3.87 | 0.11 |
| Oct | 5.23 | 5.57 | -0.34 |
| Nov | 4.47 | 4.34 | 0.13 |
| Dec | 4.48 | 4.62 | -0.14 |
48.82 | 49.27 | -0.45 |