| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.50 | 3.70 | -0.20 |
| Feb | 2.97 | 3.00 | -0.03 |
| Mar | 4.16 | 4.24 | -0.08 |
| Apr | 3.65 | 3.65 | 0.00 |
| May | 3.69 | 3.67 | 0.02 |
| Jun | 4.28 | 4.16 | 0.12 |
| Jul | 4.62 | 4.56 | 0.06 |
| Aug | 4.44 | 4.22 | 0.22 |
| Sep | 4.84 | 5.03 | -0.19 |
| Oct | 3.45 | 3.48 | -0.03 |
| Nov | 3.27 | 3.32 | -0.05 |
| Dec | 3.53 | 3.59 | -0.06 |
46.40 | 46.62 | -0.22 |