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According to the 2010 study "Effects of Air Temperature and Relative Humidity on Coronavirus Survival and Surfaces," by Lisa M. Casanova, et al., air temperature and relative humidity both impact the survival of other coronavirus strains on stainless steel.
The study found that the infectious virus could survive longer at lower temperatures and inactivation, or the point where the virus can no longer affect people, occurred more rapidly around room temperatures or warmer environments. In the lower temperatures, the virus could survive on a stainless steel surface from 5 to 28 days at all humidity levels. It took longer for inactivation to occur with a low relative humidity, or a drier environment. In short, the coronaviruses typically survive longer and stay active longer at lower temperatures in a dry environment.
The study found that the infectious virus could survive longer at lower temperatures and inactivation, or the point where the virus can no longer affect people, occurred more rapidly around room temperatures or warmer environments. In the lower temperatures, the virus could survive on a stainless steel surface from 5 to 28 days at all humidity levels. It took longer for inactivation to occur with a low relative humidity, or a drier environment. In short, the coronaviruses typically survive longer and stay active longer at lower temperatures in a dry environment.
https://www.accuweather.com/en/weather-news/what-you-need-to-know-about-the-wuhan-coronavirus/669458
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Results: There was a significant correlation between the SARS cases and the environmental temperature seven days before the onset and the seven day time lag corresponds well with the known incubation period for SARS. The optimum environmental temperature associated with the SARS cases was between 16°C to 28°C, which may encourage virus growth. A sharp rise or decrease in the environmental temperature related to the cold spell led to an increase of the SARS cases because of the possible influence of the weather on the human immune system. This study provided some evidence that there is a higher possibility for SARS to reoccur in spring than that in autumn and winter.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1733040/
