| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.60 | 3.94 | 0.66 |
| Feb | 3.69 | 3.33 | 0.36 |
| Mar | 4.58 | 4.00 | 0.58 |
| Apr | 4.80 | 4.13 | 0.67 |
| May | 4.73 | 4.14 | 0.59 |
| Jun | 4.62 | 4.28 | 0.34 |
| Jul | 4.74 | 4.45 | 0.29 |
| Aug | 5.01 | 4.46 | 0.55 |
| Sep | 4.72 | 4.28 | 0.44 |
| Oct | 4.04 | 3.06 | 0.98 |
| Nov | 4.16 | 3.38 | 0.78 |
| Dec | 4.79 | 4.03 | 0.76 |
54.48 | 47.48 | 7.00 |