| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.52 | 3.57 | -0.05 |
| Feb | 2.86 | 2.88 | -0.02 |
| Mar | 4.06 | 3.98 | 0.08 |
| Apr | 3.67 | 3.75 | -0.08 |
| May | 3.85 | 3.99 | -0.14 |
| Jun | 4.53 | 4.24 | 0.29 |
| Jul | 5.27 | 5.44 | -0.17 |
| Aug | 5.00 | 5.33 | -0.33 |
| Sep | 5.05 | 5.01 | 0.04 |
| Oct | 3.88 | 4.23 | -0.35 |
| Nov | 3.09 | 3.02 | 0.07 |
| Dec | 3.62 | 3.59 | 0.03 |
48.40 | 49.03 | -0.63 |