| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.75 | 3.93 | -0.18 |
| Feb | 4.40 | 4.53 | -0.13 |
| Mar | 4.74 | 4.80 | -0.06 |
| Apr | 5.05 | 5.12 | -0.07 |
| May | 5.29 | 5.30 | -0.01 |
| Jun | 4.55 | 4.21 | 0.34 |
| Jul | 4.52 | 4.53 | -0.01 |
| Aug | 3.67 | 3.17 | 0.50 |
| Sep | 3.37 | 3.50 | -0.13 |
| Oct | 3.88 | 3.97 | -0.09 |
| Nov | 3.95 | 3.93 | 0.02 |
| Dec | 4.73 | 4.88 | -0.15 |
51.90 | 51.87 | 0.03 |