The objective of this study was to determine the relationship between rainfall and outpatient visits for joint or back pain.

The proportion of visits for joint or back-pain related conditions (such as rheumatoid arthritis, osteoarthritis, spondylosis, and intervertebral disc disorders) were compared between rainy and non-rainy days.

Results indicated that there was no relationship between rainfall and outpatient visits for joint or back pain.

Reference:

Jena, A. B., Olenski, A. R., Molitor, D., Miller, N., & Simon, J. (2017). Association between rainfall and diagnoses of joint or back pain: Retrospective claims analysis.  British Medical Journal, 359. Doi: 10.1136/bmj.j5326