| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.81 | 3.85 | -0.04 |
| Feb | 3.41 | 3.34 | 0.07 |
| Mar | 4.64 | 4.68 | -0.04 |
| Apr | 4.27 | 4.36 | -0.09 |
| May | 3.73 | 3.58 | 0.15 |
| Jun | 4.16 | 4.09 | 0.07 |
| Jul | 3.53 | 3.51 | 0.02 |
| Aug | 3.80 | 3.76 | 0.04 |
| Sep | 3.94 | 3.79 | 0.15 |
| Oct | 4.89 | 4.88 | 0.01 |
| Nov | 4.06 | 4.00 | 0.06 |
| Dec | 4.76 | 4.79 | -0.03 |
49.00 | 48.63 | 0.37 |