| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.21 | 2.99 | 0.22 |
| Feb | 3.32 | 3.02 | 0.30 |
| Mar | 4.47 | 4.16 | 0.31 |
| Apr | 4.62 | 4.28 | 0.34 |
| May | 5.93 | 5.57 | 0.36 |
| Jun | 4.06 | 3.91 | 0.15 |
| Jul | 3.27 | 3.28 | -0.01 |
| Aug | 3.03 | 2.91 | 0.12 |
| Sep | 3.69 | 3.75 | -0.06 |
| Oct | 4.61 | 4.47 | 0.14 |
| Nov | 4.04 | 4.00 | 0.04 |
| Dec | 4.33 | 4.04 | 0.29 |
48.58 | 46.38 | 2.20 |