| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.53 | 2.59 | -0.06 |
| Feb | 2.28 | 2.30 | -0.02 |
| Mar | 3.43 | 3.57 | -0.14 |
| Apr | 4.66 | 4.64 | 0.02 |
| May | 4.63 | 5.31 | -0.68 |
| Jun | 4.24 | 4.27 | -0.03 |
| Jul | 3.98 | 4.06 | -0.08 |
| Aug | 3.81 | 3.70 | 0.11 |
| Sep | 3.54 | 3.48 | 0.06 |
| Oct | 3.12 | 3.29 | -0.17 |
| Nov | 3.38 | 3.50 | -0.12 |
| Dec | 2.63 | 2.65 | -0.02 |
42.23 | 43.36 | -1.13 |