| SSN | GCR count rate [cts/min] | |||
| Pearson coefficient | P value | Pearson Coefficient | P value | |
| Annual | −0.12* | 0.035 | 0.15* | 0.045 |
| January | 0.08 | 0.323 | −0.161 | 0.178 |
| February | 0.263 | 0.064 | −0.268 | 0.059 |
| March | 0.092 | 0.299 | −0.051 | 0.386 |
| April | 0.125 | 0.237 | −0.311* | 0.035 |
| May | −0.339* | 0.023 | 0.248 | 0.076 |
| June | −0.347* | 0.021 | 0.411** | 0.007 |
| July | −0.154 | 0.189 | 0.132 | 0.225 |
| August | −0.01 | 0.477 | 0.028 | 0.436 |
| September | −0.223 | 0.099 | 0.215 | 0.108 |
| October | −0.197 | 0.128 | 0.216 | 0.106 |
| November | −0.144 | 0.212 | 0.157 | 0.183 |
| December | −0.012 | 0.476 | −0.167 | 0.168 |
| Winter | 0.238 | 0.085 | −0.344* | 0.021 |
| Spring | 0.053 | 0.382 | −0.169 | 0.165 |
| Summer | −0.178* | 0.014 | 0.221* | 0.011 |
| Fall | −0.219* | 0.023 | 0.244* | 0.031 |