| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.39 | 0.33 | 0.06 |
| Feb | 0.56 | 0.52 | 0.04 |
| Mar | 1.04 | 1.00 | 0.04 |
| Apr | 2.28 | 2.24 | 0.04 |
| May | 3.41 | 3.45 | -0.04 |
| Jun | 3.64 | 3.67 | -0.03 |
| Jul | 3.18 | 3.09 | 0.09 |
| Aug | 2.69 | 2.56 | 0.13 |
| Sep | 1.75 | 1.66 | 0.09 |
| Oct | 1.76 | 1.74 | 0.02 |
| Nov | 0.60 | 0.57 | 0.03 |
| Dec | 0.44 | 0.44 | 0.00 |
21.74 | 21.27 | 0.47 |