| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.10 | 1.04 | 0.06 |
| Feb | 1.11 | 1.08 | 0.03 |
| Mar | 2.01 | 1.92 | 0.09 |
| Apr | 3.64 | 3.61 | 0.03 |
| May | 4.52 | 4.52 | 0.00 |
| Jun | 5.25 | 5.16 | 0.09 |
| Jul | 4.18 | 4.16 | 0.02 |
| Aug | 4.58 | 4.55 | 0.03 |
| Sep | 3.85 | 3.76 | 0.09 |
| Oct | 2.58 | 2.50 | 0.08 |
| Nov | 1.84 | 1.78 | 0.06 |
| Dec | 1.31 | 1.22 | 0.09 |
35.97 | 35.30 | 0.67 |