| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.73 | 0.76 | -0.03 |
| Feb | 1.12 | 1.11 | 0.01 |
| Mar | 2.03 | 2.01 | 0.02 |
| Apr | 2.57 | 2.56 | 0.01 |
| May | 4.87 | 4.81 | 0.06 |
| Jun | 4.17 | 4.01 | 0.16 |
| Jul | 4.12 | 3.89 | 0.23 |
| Aug | 3.70 | 3.59 | 0.11 |
| Sep | 2.54 | 2.39 | 0.15 |
| Oct | 2.35 | 2.34 | 0.01 |
| Nov | 1.27 | 1.26 | 0.01 |
| Dec | 1.13 | 1.08 | 0.05 |
30.60 | 29.81 | 0.79 |