| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.95 | 3.85 | 0.10 |
| Feb | 3.11 | 3.04 | 0.07 |
| Mar | 4.09 | 4.04 | 0.05 |
| Apr | 4.35 | 4.35 | 0.00 |
| May | 4.59 | 4.46 | 0.13 |
| Jun | 4.67 | 4.52 | 0.15 |
| Jul | 4.76 | 4.97 | -0.21 |
| Aug | 4.80 | 4.77 | 0.03 |
| Sep | 4.53 | 4.28 | 0.25 |
| Oct | 3.58 | 3.46 | 0.12 |
| Nov | 3.41 | 3.30 | 0.11 |
| Dec | 4.04 | 4.01 | 0.03 |
49.88 | 49.05 | 0.83 |