| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.73 | 0.01 |
| Feb | 0.76 | 0.72 | 0.04 |
| Mar | 1.41 | 1.34 | 0.07 |
| Apr | 2.28 | 2.34 | -0.06 |
| May | 3.46 | 3.32 | 0.14 |
| Jun | 4.40 | 4.47 | -0.07 |
| Jul | 4.60 | 4.56 | 0.04 |
| Aug | 3.66 | 3.54 | 0.12 |
| Sep | 3.10 | 2.98 | 0.12 |
| Oct | 2.90 | 2.78 | 0.12 |
| Nov | 1.45 | 1.42 | 0.03 |
| Dec | 0.98 | 1.05 | -0.07 |
29.74 | 29.25 | 0.49 |