| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 3.69 | 3.86 | -0.17 | 
| Feb | 4.19 | 4.41 | -0.22 | 
| Mar | 4.71 | 4.99 | -0.28 | 
| Apr | 4.78 | 4.96 | -0.18 | 
| May | 5.14 | 5.23 | -0.09 | 
| Jun | 4.60 | 4.78 | -0.18 | 
| Jul | 4.40 | 4.53 | -0.13 | 
| Aug | 3.62 | 3.68 | -0.06 | 
| Sep | 3.62 | 3.78 | -0.16 | 
| Oct | 3.71 | 3.78 | -0.07 | 
| Nov | 3.76 | 3.79 | -0.03 | 
| Dec | 4.51 | 4.84 | -0.33 | 
| 50.73 | 52.63 | -1.90 |