| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.82 | 0.79 | 0.03 |
| Feb | 1.19 | 1.16 | 0.03 |
| Mar | 2.24 | 2.22 | 0.02 |
| Apr | 2.72 | 2.58 | 0.14 |
| May | 4.50 | 4.67 | -0.17 |
| Jun | 4.36 | 4.31 | 0.05 |
| Jul | 3.67 | 3.80 | -0.13 |
| Aug | 3.63 | 3.58 | 0.05 |
| Sep | 2.49 | 2.44 | 0.05 |
| Oct | 2.68 | 2.62 | 0.06 |
| Nov | 1.32 | 1.31 | 0.01 |
| Dec | 1.29 | 1.22 | 0.07 |
30.91 | 30.70 | 0.21 |