| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.38 | 2.55 | -0.17 |
| Feb | 1.98 | 2.00 | -0.02 |
| Mar | 2.51 | 2.62 | -0.11 |
| Apr | 3.20 | 3.12 | 0.08 |
| May | 3.75 | 3.85 | -0.10 |
| Jun | 4.39 | 4.25 | 0.14 |
| Jul | 4.24 | 4.58 | -0.34 |
| Aug | 4.05 | 4.18 | -0.13 |
| Sep | 3.63 | 3.33 | 0.30 |
| Oct | 4.05 | 3.79 | 0.26 |
| Nov | 2.99 | 3.03 | -0.04 |
| Dec | 2.86 | 2.92 | -0.06 |
40.03 | 40.22 | -0.19 |