The frequency and magnitude
of heat waves has NOT increased.
There is no evidence so far
that extreme heat waves
are becoming more common
because of climate change:
Three examples:
(1)
New York City
-- Zero daily highs
above 100 F.,
since 2012
( over a 6.5 year period )
-- Five daily highs
above 100 F.,
from 2002 to 2012
( an average of two days per year )
-- Nine daily highs
above 100 F.,
from 1984 through 2001
( an average of two days per year )
(2)
Kansas City, Missouri:
-- An average of
18.7 days a year
at 100 degrees F.,
or higher,
during the 1930s
-- An average of
4.8 days a year
at 100 degrees F.,
or higher,
over the past 30 years.
-- An average of
5.5 days a year
at 100 degrees F.,
or higher,
over the past 10 years.
(3)
THE 50 U.S. STATES:
THE 50 U.S. STATES:
37 states
37 of the 50 states
have an all-time
high temperature record
not yet exceeded
for more than 75 years.
26 states
26 of the 50 states
set their all-time
high temperature records
during the 1930s
that still stand
(some have since been tied).
11 states
11 state all-time
high temperature records
were set BEFORE 1930
NOTE:
Only 2 states
have all-time
record high
temperatures set
in the 21st century
( South Dakota and South Carolina ).