| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.83 | 3.80 | 0.03 |
| Feb | 4.23 | 4.29 | -0.06 |
| Mar | 5.14 | 5.11 | 0.03 |
| Apr | 5.60 | 5.56 | 0.04 |
| May | 5.64 | 5.33 | 0.31 |
| Jun | 3.74 | 3.67 | 0.07 |
| Jul | 3.93 | 3.79 | 0.14 |
| Aug | 3.56 | 3.22 | 0.34 |
| Sep | 3.29 | 3.38 | -0.09 |
| Oct | 4.50 | 4.41 | 0.09 |
| Nov | 4.76 | 4.88 | -0.12 |
| Dec | 5.10 | 5.30 | -0.20 |
53.32 | 52.74 | 0.58 |