| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.63 | 0.60 | 0.03 |
| Feb | 0.62 | 0.59 | 0.03 |
| Mar | 1.22 | 1.18 | 0.04 |
| Apr | 2.28 | 2.29 | -0.01 |
| May | 3.20 | 3.16 | 0.04 |
| Jun | 4.39 | 4.31 | 0.08 |
| Jul | 4.34 | 4.16 | 0.18 |
| Aug | 3.63 | 3.63 | 0.00 |
| Sep | 2.88 | 2.88 | 0.00 |
| Oct | 2.52 | 2.48 | 0.04 |
| Nov | 1.10 | 1.07 | 0.03 |
| Dec | 0.76 | 0.75 | 0.01 |
27.57 | 27.10 | 0.47 |