| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.04 | 4.06 | -0.02 |
| Feb | 3.55 | 3.50 | 0.05 |
| Mar | 4.92 | 5.08 | -0.16 |
| Apr | 4.47 | 4.60 | -0.13 |
| May | 3.54 | 3.45 | 0.09 |
| Jun | 4.00 | 4.00 | 0.00 |
| Jul | 3.33 | 3.30 | 0.03 |
| Aug | 3.89 | 3.84 | 0.05 |
| Sep | 4.10 | 4.06 | 0.04 |
| Oct | 4.82 | 4.70 | 0.12 |
| Nov | 4.26 | 4.20 | 0.06 |
| Dec | 4.91 | 4.95 | -0.04 |
49.83 | 49.74 | 0.09 |