| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.66 | 0.08 |
| Feb | 0.79 | 0.79 | 0.00 |
| Mar | 1.47 | 1.43 | 0.04 |
| Apr | 2.62 | 2.60 | 0.02 |
| May | 3.89 | 3.79 | 0.10 |
| Jun | 4.32 | 4.28 | 0.04 |
| Jul | 4.30 | 4.29 | 0.01 |
| Aug | 4.02 | 4.02 | 0.00 |
| Sep | 3.23 | 3.03 | 0.20 |
| Oct | 2.82 | 2.80 | 0.02 |
| Nov | 1.56 | 1.46 | 0.10 |
| Dec | 1.00 | 1.02 | -0.02 |
30.76 | 30.17 | 0.59 |