| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.49 | 1.50 | -0.01 |
| Feb | 1.78 | 1.81 | -0.03 |
| Mar | 2.67 | 2.61 | 0.06 |
| Apr | 4.11 | 3.98 | 0.13 |
| May | 5.35 | 5.38 | -0.03 |
| Jun | 5.22 | 5.38 | -0.16 |
| Jul | 4.59 | 4.48 | 0.11 |
| Aug | 4.16 | 3.93 | 0.23 |
| Sep | 3.98 | 3.97 | 0.01 |
| Oct | 3.32 | 3.23 | 0.09 |
| Nov | 2.41 | 2.44 | -0.03 |
| Dec | 1.76 | 1.73 | 0.03 |
40.84 | 40.44 | 0.40 |