| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.49 | 3.62 | -0.13 |
| Feb | 3.42 | 3.45 | -0.03 |
| Mar | 4.60 | 4.54 | 0.06 |
| Apr | 5.12 | 5.06 | 0.06 |
| May | 5.20 | 5.25 | -0.05 |
| Jun | 4.50 | 4.67 | -0.17 |
| Jul | 4.13 | 4.10 | 0.03 |
| Aug | 3.56 | 3.23 | 0.33 |
| Sep | 3.80 | 3.74 | 0.06 |
| Oct | 3.62 | 3.60 | 0.02 |
| Nov | 3.67 | 3.73 | -0.06 |
| Dec | 4.13 | 4.29 | -0.16 |
49.24 | 49.28 | -0.04 |