| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.04 | 4.07 | -0.03 |
| Feb | 3.47 | 3.52 | -0.05 |
| Mar | 4.62 | 4.76 | -0.14 |
| Apr | 4.50 | 4.54 | -0.04 |
| May | 3.61 | 3.57 | 0.04 |
| Jun | 4.26 | 4.35 | -0.09 |
| Jul | 3.65 | 3.73 | -0.08 |
| Aug | 4.06 | 4.16 | -0.10 |
| Sep | 4.13 | 4.10 | 0.03 |
| Oct | 5.02 | 4.99 | 0.03 |
| Nov | 4.13 | 4.13 | 0.00 |
| Dec | 4.80 | 5.00 | -0.20 |
50.29 | 50.92 | -0.63 |