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Tulsa, Oklahoma
Hail(1950-Present)
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The following table lists the occurrences of hail since 1950
at the Tulsa International Airport - the site of the official
weather observation for the Tulsa metropolitan area. Although
the occurrence of hail varies widely from place to place, this
table is meant to illustrate the frequency of hail at any specific
location in the area. Since hail, by nature, is a fairly isolated
event, it often occurs in one area of the city while completely
missing another area, and vice versa. But by using nearly 50 years
of data, this table is meant to represent an overall average for any
single location in the Tulsa metropolitan area.
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Tulsa, OK - Hail Occurrences by Month and Year
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YEARS Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Total
1995-* 0 0 0 0 0 1 1 0 0 0 1 0 3
1990-94 0 0 0 5 1 2 1 0 1 1 1 0 12
1985-89 0 0 3 1 2 0 0 0 0 0 3 0 9
1980-84 0 0 1 2 4 1 0 1 1 0 0 0 10
1975-79 0 0 0 3 1 3 0 0 0 0 1 1 9
1970-74 0 0 1 3 5 2 0 0 1 1 0 1 14
1965-69 1 1 1 6 5 3 0 1 0 0 1 0 19
1960-64 0 2 1 7 5 2 1 0 0 0 0 0 18
1955-59 2 1 3 5 4 2 0 0 0 0 0 0 17
1950-54 0 0 5 5 6 0 1 1 1 1 0 0 20
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-TOTALS 3 4 15 37 33 16 4 3 4 3 7 2 131
-YEARLY
AVERAGE .1 .1 .3 .6 .6 .3 .1 .1 .1 .1 .2 0 2.3
-MONTHLY
CHANCE 5% 7% 25% 64% 57% 28% 7% 5% 7% 5% 12% 4%
* - Data through December 1997. Hail was recorded in the official
totals together with snow and sleet in years before 1956 and
again from 1989 to the present. For the purpose of this table,
snow and sleet were filtered from the totals and only hail
events were used.
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Using the data from the table, any specific location in the Tulsa
metropolitan area can expect to receive hail an average of two to
three times each year. Hail has been reported in every month, with
the highest frequency during the transitional months in the spring.
The peak time of year falls right in the middle of that transition
period from mid-April to mid-May. Another small peak occurs in
November as the weather pattern transitions back into winter.
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weather.gov 
National Weather Service Forecast Office
