| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.89 | 0.86 | 0.03 |
| Feb | 1.35 | 1.32 | 0.03 |
| Mar | 2.20 | 2.23 | -0.03 |
| Apr | 3.88 | 3.76 | 0.12 |
| May | 5.36 | 5.39 | -0.03 |
| Jun | 5.13 | 5.26 | -0.13 |
| Jul | 4.64 | 4.60 | 0.04 |
| Aug | 4.02 | 4.01 | 0.01 |
| Sep | 3.56 | 3.53 | 0.03 |
| Oct | 2.88 | 3.00 | -0.12 |
| Nov | 2.00 | 1.99 | 0.01 |
| Dec | 1.46 | 1.40 | 0.06 |
37.37 | 37.35 | 0.02 |