| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.02 | 4.29 | -0.27 |
| Feb | 3.78 | 3.93 | -0.15 |
| Mar | 5.09 | 5.23 | -0.14 |
| Apr | 4.44 | 4.66 | -0.22 |
| May | 3.58 | 3.66 | -0.08 |
| Jun | 4.01 | 3.86 | 0.15 |
| Jul | 3.43 | 3.50 | -0.07 |
| Aug | 3.58 | 3.67 | -0.09 |
| Sep | 3.87 | 3.73 | 0.14 |
| Oct | 4.83 | 5.19 | -0.36 |
| Nov | 4.26 | 4.46 | -0.20 |
| Dec | 4.91 | 5.05 | -0.14 |
49.80 | 51.23 | -1.43 |