| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.14 | 2.99 | 0.15 |
| Feb | 2.92 | 2.80 | 0.12 |
| Mar | 4.15 | 3.88 | 0.27 |
| Apr | 5.35 | 5.08 | 0.27 |
| May | 5.20 | 4.89 | 0.31 |
| Jun | 4.58 | 4.55 | 0.03 |
| Jul | 3.87 | 3.71 | 0.16 |
| Aug | 3.23 | 3.00 | 0.23 |
| Sep | 3.25 | 3.06 | 0.19 |
| Oct | 3.54 | 3.32 | 0.22 |
| Nov | 4.01 | 3.93 | 0.08 |
| Dec | 3.29 | 3.20 | 0.09 |
46.53 | 44.41 | 2.12 |