| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.69 | 4.66 | 0.03 |
| Feb | 4.68 | 4.57 | 0.11 |
| Mar | 4.86 | 4.76 | 0.10 |
| Apr | 3.87 | 3.98 | -0.11 |
| May | 3.92 | 3.77 | 0.15 |
| Jun | 4.54 | 4.64 | -0.10 |
| Jul | 4.10 | 4.26 | -0.16 |
| Aug | 4.80 | 4.56 | 0.24 |
| Sep | 4.02 | 4.06 | -0.04 |
| Oct | 3.61 | 3.57 | 0.04 |
| Nov | 4.06 | 4.01 | 0.05 |
| Dec | 4.61 | 4.64 | -0.03 |
51.76 | 51.48 | 0.28 |