| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.65 | 4.70 | -0.05 |
| Feb | 4.70 | 4.62 | 0.08 |
| Mar | 5.00 | 4.76 | 0.24 |
| Apr | 3.91 | 4.02 | -0.11 |
| May | 3.85 | 3.91 | -0.06 |
| Jun | 4.45 | 4.73 | -0.28 |
| Jul | 4.18 | 4.48 | -0.30 |
| Aug | 4.65 | 4.55 | 0.10 |
| Sep | 4.11 | 4.14 | -0.03 |
| Oct | 3.55 | 3.60 | -0.05 |
| Nov | 4.14 | 4.11 | 0.03 |
| Dec | 4.61 | 4.67 | -0.06 |
51.80 | 52.29 | -0.49 |