Gretna climate

Gretna Weather in August

NOAA 1991-2020 normals for Quincy 3 Ssw, 10.5 km from Gretna

Average highs run from 91°F on August 1 to 90°F on August 31, and lows from 72°F to 70°F. Normal precipitation for the month is 6.05 in.

August day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Gretna, in °F, with the record for each date.5060708090100110151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
91°F
Average low
72°F
Precipitation
6.05 in
Record high
101°FAug 18, 1981
Record low
59°FAug 30, 1986
Chance of a freeze
0%
Days of 90°F or more
19.8
Daylight
13 h 36 min to 12 h 48 min
Cloud cover
57%
Humidity
79%
Dew point
73°F
Wind
3.4 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Aug 191°F72°F100°F 199960°F 20170%
Aug 291°F72°F99°F 201064°F 20170%
Aug 391°F72°F98°F 197864°F 19970%
Aug 491°F72°F97°F 202064°F 19970%
Aug 591°F72°F97°F 201168°F 19680%
Aug 691°F72°F96°F 198967°F 19740%
Aug 791°F72°F97°F 199065°F 19690%
Aug 891°F72°F97°F 200767°F 20020%
Aug 991°F72°F98°F 196860°F 20020%
Aug 1091°F72°F97°F 200767°F 19770%
Aug 1191°F72°F96°F 198762°F 20080%
Aug 1291°F72°F97°F 201964°F 20020%
Aug 1391°F72°F99°F 199964°F 19970%
Aug 1491°F72°F97°F 199966°F 19790%
Aug 1591°F72°F97°F 199062°F 19970%
Aug 1691°F72°F100°F 199566°F 19790%
Aug 1791°F72°F97°F 199064°F 20110%
Aug 1891°F72°F101°F 198166°F 19760%
Aug 1991°F71°F98°F 200064°F 19760%
Aug 2091°F71°F98°F 199067°F 19780%
Aug 2191°F71°F97°F 197263°F 19910%
Aug 2291°F71°F97°F 198064°F 19730%
Aug 2391°F71°F98°F 200763°F 19730%
Aug 2490°F71°F97°F 196860°F 19870%
Aug 2590°F71°F97°F 196861°F 20090%
Aug 2690°F71°F97°F 198763°F 19690%
Aug 2790°F71°F96°F 198962°F 19690%
Aug 2890°F71°F97°F 199861°F 20150%
Aug 2990°F71°F97°F 199862°F 19680%
Aug 3090°F70°F98°F 201159°F 19860%
Aug 3190°F70°F98°F 201160°F 19920%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Gretna, in percent, and of at least 0.1 inch of snowfall.00.21102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

August 1
sunrise 6:57 AM, sunset 8:33 PM
August 31
sunrise 7:15 AM, sunset 8:03 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00087429 (Quincy 3 Ssw), public domain. Records: NOAA GHCN-Daily, station USC00087429, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.