| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.42 | 4.36 | 0.06 |
| Feb | 4.17 | 4.44 | -0.27 |
| Mar | 4.63 | 4.55 | 0.08 |
| Apr | 3.46 | 3.67 | -0.21 |
| May | 3.60 | 3.73 | -0.13 |
| Jun | 4.17 | 4.17 | 0.00 |
| Jul | 4.13 | 4.16 | -0.03 |
| Aug | 4.36 | 4.44 | -0.08 |
| Sep | 3.64 | 4.17 | -0.53 |
| Oct | 3.48 | 3.62 | -0.14 |
| Nov | 3.74 | 3.93 | -0.19 |
| Dec | 4.51 | 4.74 | -0.23 |
48.31 | 49.98 | -1.67 |