| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.97 | 4.09 | -0.12 |
| Feb | 3.55 | 3.54 | 0.01 |
| Mar | 4.80 | 4.88 | -0.08 |
| Apr | 4.38 | 4.64 | -0.26 |
| May | 3.47 | 3.47 | 0.00 |
| Jun | 4.05 | 4.19 | -0.14 |
| Jul | 3.40 | 3.44 | -0.04 |
| Aug | 3.82 | 3.85 | -0.03 |
| Sep | 4.05 | 4.07 | -0.02 |
| Oct | 4.74 | 4.83 | -0.09 |
| Nov | 4.18 | 4.20 | -0.02 |
| Dec | 4.78 | 4.98 | -0.20 |
49.19 | 50.18 | -0.99 |