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Climate Data Sources
Normals - roughly speaking daily and monthly long-term
means, are published by NCDC once every decade. The
1971-2000 Normals include 199 stations in Oklahoma (see
station map
and list
for specifics). In addition to basic variables such as
maximum and minimum temperature, precipitation, snowfall,
and degree days, specialized normals publications give a
variety of area-weighted and population-weighted indices.
See the NCDC website
for more details.
Monthly Normals:
Daily Normals:
Summarized Station Normals and Extremes
- CLIMOCS
- monthly and annual averages of temperature and
precipitation derived from cooperative observer
obserations. Averages are from 1971-2000 and extremes are
from the period-of-record for the station.
- Monthly
Climate Calendar - A calendar-style display of daily
temperature and precipitation extremes, average maximum
and minimum temperatures, and percentage occurrence of
significant precipitation
County Climatologies
- Documents located on cig in
/ocsdata/County Climatologies/
- Summarized averages and extremes for a selected
cooperative observer station and Mesonet station in each
county
- Includes written narrative, CLIMOCS, exceedence
values, freeze/frost data, wind roses, average humidity
and soil temperatures, and tornado history
Atlas of
Oklahoma Climate: [NOTE: Needs Internet
Explorer]
- Climate "today" - normals and averages describing
Oklahoma's climate of the recent past - and Oklahoma's
Climate history - graphs, tables, and data dating back to
the 1800s.
- Climate today includes a written narrative of
Oklahoma; county and statewide station normals; wind
frequency and wind roses; climate division averages, and
tornado information
- Climate history includes a timeline of significant
weather / climate events, by decade; month-by-month maps
and graphs of temperature and precipitation; historical
tornado information; daily maps of state records; and
station metadata.
- Updated periodically with additional products and
data files.
Oklahoma normals and extremes on
the web - county summaries, county normals, state
temperature and precipitation maps
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