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Table 1 Summary of weather variables in year 2007 at Taipei City, Taiwan

From: Patients with migraine are right about their perception of temperature as a trigger: time series analysis of headache diary data

Variables Whole year Spring (Mar-May) Summer (Jun-Aug) Autumn (Sep-Nov) Winter (Dec-Feb)
Temperature, °C 23.6 ± 5.0 22.5 ± 4.4 29.1 ± 1.8 24.4 ± 3.3 18.5 ± 2.5
Pressure, mmHg 1012.2 ± 6.9 1012.7 ± 4.5 1005.2 ± 3.6 1012.1 ± 7.0 1019.2 ± 3.7
Humidity, % 75.6 ± 8.9 74.8 ± 8.8 74.8 ± 8.3 77.6 ± 8.5 75.1 ± 9.7
Sunshine duration, hour 3.9 ± 3.7 3.6 ± 3.9 4.9 ± 3.2 3.4 ± 3.7 3.5 ± 3.7
Wind speed, m/s 2.4 ± 1.3 2.1 ± 1.1 1.7 ± 1.1 3.3 ± 1.3 2.6 ± 1.1