| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.54 | 3.56 | -0.02 |
| Feb | 2.87 | 2.88 | -0.01 |
| Mar | 4.06 | 3.99 | 0.07 |
| Apr | 3.70 | 3.73 | -0.03 |
| May | 3.86 | 3.99 | -0.13 |
| Jun | 4.53 | 4.29 | 0.24 |
| Jul | 5.26 | 5.35 | -0.09 |
| Aug | 4.98 | 5.23 | -0.25 |
| Sep | 5.01 | 4.97 | 0.04 |
| Oct | 3.93 | 4.23 | -0.30 |
| Nov | 3.09 | 3.05 | 0.04 |
| Dec | 3.62 | 3.63 | -0.01 |
48.45 | 48.90 | -0.45 |