| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.88 | 0.86 | 0.02 |
| Feb | 0.79 | 0.74 | 0.05 |
| Mar | 1.01 | 1.00 | 0.01 |
| Apr | 1.86 | 1.92 | -0.06 |
| May | 2.98 | 3.00 | -0.02 |
| Jun | 4.02 | 3.86 | 0.16 |
| Jul | 4.04 | 4.13 | -0.09 |
| Aug | 3.23 | 3.15 | 0.08 |
| Sep | 3.47 | 3.53 | -0.06 |
| Oct | 2.63 | 2.74 | -0.11 |
| Nov | 1.56 | 1.43 | 0.13 |
| Dec | 1.11 | 1.04 | 0.07 |
27.58 | 27.40 | 0.18 |