20 September in history



Station data

Station Data

Records

Warmest day of month
Warmest day of month with an average temparature of 14.97 °C.
Most humid day of month
Most humid day of month with an average humidity of 92.4 %.


Statistics

Average temperature
The average temperature on this day is 14.97 °C.
Maximum temperature
The maximum measured temperature on this day was 18.3 °C in 2018 at 2:15 pm.
Minimum temperature
The minimum measured temperature on this day was 0 °C in 2019 at 12:25 am.
Average humidity
The average humidity on this day is 92.4 %.
Maximum humidity
The maximum measured humidity on this day was 99 %.
Minimum humidity
The minimum measured humidity on this day was 0 % in 2019 at 12:35 am.
Maximum pressure
The maximum measured pressure on this day was 1028.2 hpa in 2019 at 12:00 am.
Minimum pressure
The minimum measured pressure on this day was 997.5 hpa in 2018 at 10:55 pm.
Average wind speed
The average wind speed on this day is 2.52 mph.
Maximum wind speed
The maximum measured wind speed on this day was 11.5 mph in 2018 at 10:30 pm.
Average wind gust
The average wind speed on this day is 6.67 mph.
Maximum wind gust
The maximum measured wind gust on this day was 27.5 mph in 2018 at 8:20 pm.
Maximum precipitation
The maximum daily precipitation measured on this day was 17 mm in 2016.


US Weather Events

US Weather Events

1845 174 yrs ago
A tornado traveled 275 miles across Lake Ontario, New York and Lake Champlain. (Sandra and TI Richard Sanders - 1987)
1926 93 yrs ago
A hurricane which hit Miami, FL, on the 18th, pounded Pensacola with wind gusts to 152 mph. Winds raged in excess of 100 mph for four hours, and above 75 mph for 20 hours. (The Weather Channel)
1967 52 yrs ago
Hurricane Beulah moved into South Texas, and torrential rains from the hurricane turned the rich agricultural areas of South Texas into a large lake. Hurricane Beulah also spawned a record 115 tornadoes. (David Ludlum)
1983 36 yrs ago
The temperature at West Yellowstone MT plunged to six degrees below zero, while the temperature at San Francisco CA soared to 94 degrees. (The Weather Channel)
1987 32 yrs ago
Afternoon and evening thunderstorms produced severe weather in Oklahoma and west Texas. In Oklahoma, a thunderstorm at Seiling produced three inches of rain in one hour, golf ball size hail, and wind gusts to 60 mph which collapsed a tent at the state fair injuring nine persons. (The National Weather Summary)
1988 31 yrs ago
Showers and thunderstorms produced locally heavy rains in central Wyoming, and snow in some of the higher elevations. Casper WY reported 1.75 inches of rain in 24 hours, and a thunderstorm north of the Wild Horse Reservoir produced 1.90 inches of rain in just forty minutes.
1989 30 yrs ago
Hugo jilted Iris. Hurricane Hugo churned toward the South Atlantic Coast, gradually regaining strength along the way. Tropical Storm Iris got too close to Hugo, and began to weaken. A cold front brought strong and gusty winds to the Great Basin and the Southern Plateau Region, with wind gusts to 44 mph reported at Kingman AZ. (The National Weather Summary)
2005 14 yrs ago
"Hurricane Rita tracked through the Florida Straits and just south of the Florida Keys. Winds were sustained at tropical storm force at Key West, where peak winds gusted to 76 mph"""
Data source: http://www.weatherforyou.com/


World Records

World Records


-- no data for this day --


F5 tornadoes

F5 tornadoes


-- no data for this day --


Deadly earthquakes

Deadly earthquakes

20.09.1968 06.00 am UTC 51 yrs ago
Venezuela (map) , 102.6 km deep Magnitude: 6.2
Secondary effectstsunami
Deaths resulting from earthquake shaking2
Total fatalities resulting from earthquake shaking and secondary effects2
Total deaths resulting from an earthquake (Utsu catalog)3

20.09.1999 05.47 pm UTC 20 yrs ago
Taiwan (map) , 21 km deep Magnitude: 7.6
Secondary effectslandslide
Deaths resulting from earthquake shaking2297
Total fatalities resulting from earthquake shaking and secondary effects2297
Total deaths resulting from an earthquake (Utsu catalog)2413
Total deaths resulting from an earthquake (Emergency Events Database)2264
Improved fatality estimates from official reports and detailed scholarly studies2489

20.09.2000 08.37 am UTC 19 yrs ago
Ecuador (map) , 40 km deep Magnitude: 5.5
Deaths resulting from earthquake shaking1
Total fatalities resulting from earthquake shaking and secondary effects1
Total deaths resulting from an earthquake (Utsu catalog)1



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