| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.13 | 2.12 | 0.01 |
| Feb | 1.84 | 1.92 | -0.08 |
| Mar | 2.38 | 2.30 | 0.08 |
| Apr | 3.79 | 3.74 | 0.05 |
| May | 4.59 | 4.51 | 0.08 |
| Jun | 4.56 | 4.47 | 0.09 |
| Jul | 4.30 | 4.40 | -0.10 |
| Aug | 4.06 | 3.91 | 0.15 |
| Sep | 3.38 | 3.36 | 0.02 |
| Oct | 3.34 | 3.30 | 0.04 |
| Nov | 2.62 | 2.60 | 0.02 |
| Dec | 2.16 | 2.13 | 0.03 |
39.15 | 38.76 | 0.39 |