| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.50 | 1.54 | -0.04 |
| Feb | 1.63 | 1.64 | -0.01 |
| Mar | 2.34 | 2.14 | 0.20 |
| Apr | 3.65 | 3.62 | 0.03 |
| May | 4.32 | 4.40 | -0.08 |
| Jun | 5.31 | 5.26 | 0.05 |
| Jul | 4.47 | 4.17 | 0.30 |
| Aug | 3.92 | 3.98 | -0.06 |
| Sep | 3.71 | 3.93 | -0.22 |
| Oct | 2.88 | 2.85 | 0.03 |
| Nov | 2.29 | 2.29 | 0.00 |
| Dec | 1.79 | 1.89 | -0.10 |
37.81 | 37.71 | 0.10 |