| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.45 | 3.07 | 0.38 |
| Feb | 2.99 | 2.72 | 0.27 |
| Mar | 3.78 | 3.47 | 0.31 |
| Apr | 3.75 | 3.46 | 0.29 |
| May | 3.71 | 3.53 | 0.18 |
| Jun | 3.91 | 3.76 | 0.15 |
| Jul | 4.58 | 4.16 | 0.42 |
| Aug | 3.86 | 3.62 | 0.24 |
| Sep | 3.54 | 3.30 | 0.24 |
| Oct | 2.73 | 2.53 | 0.20 |
| Nov | 3.01 | 2.77 | 0.24 |
| Dec | 3.53 | 3.19 | 0.34 |
42.84 | 39.58 | 3.26 |