| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.90 | 2.98 | -0.08 |
| Feb | 2.33 | 2.47 | -0.14 |
| Mar | 3.27 | 3.31 | -0.04 |
| Apr | 3.62 | 3.69 | -0.07 |
| May | 3.69 | 4.19 | -0.50 |
| Jun | 3.92 | 3.91 | 0.01 |
| Jul | 4.17 | 4.40 | -0.23 |
| Aug | 3.73 | 4.16 | -0.43 |
| Sep | 4.31 | 4.47 | -0.16 |
| Oct | 3.73 | 3.93 | -0.20 |
| Nov | 2.98 | 2.96 | 0.02 |
| Dec | 3.11 | 3.41 | -0.30 |
41.76 | 43.88 | -2.12 |