Hancock County climate

Hancock County Weather in September

NOAA 1991-2020 normals for Bay St Louis Nasa, 12.1 km from Hancock County

Average highs run from 88°F on September 1 to 82°F on September 30, and lows from 70°F to 63°F. Normal precipitation for the month is 5.01 in over about 8 wet days.

September day by day

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

Normal daily high and low temperature at Hancock County, in °F, with the record for each date.406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
85°F
Average low
67°F
Precipitation
5.01 in
Record high
97°FSep 6, 1989
Record low
42°FSep 27, 2006
Chance of a freeze
0%
Days of 90°F or more
12.5
Daylight
12 h 46 min to 11 h 53 min
Cloud cover
47%
Humidity
81%
Dew point
70°F
Wind
4.5 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
Sep 188°F70°F95°F 199764°F 199232%0%
Sep 287°F70°F93°F 198964°F 199231%0%
Sep 387°F70°F95°F 199564°F 198731%0%
Sep 487°F70°F95°F 198665°F 198731%0%
Sep 587°F69°F95°F 200060°F 198730%0%
Sep 687°F69°F97°F 198959°F 201130%0%
Sep 787°F69°F93°F 200456°F 198829%0%
Sep 886°F69°F92°F 200457°F 198829%0%
Sep 986°F69°F95°F 198760°F 198829%0%
Sep 1086°F69°F92°F 198760°F 201128%0%
Sep 1186°F68°F92°F 198758°F 199928%0%
Sep 1286°F68°F92°F 198659°F 199928%0%
Sep 1386°F68°F94°F 201059°F 201527%0%
Sep 1485°F68°F94°F 198759°F 201527%0%
Sep 1585°F67°F93°F 198762°F 198626%0%
Sep 1685°F67°F94°F 198258°F 199926%0%
Sep 1785°F67°F92°F 198258°F 200326%0%
Sep 1885°F67°F92°F 198756°F 199925%0%
Sep 1984°F66°F94°F 200456°F 199925%0%
Sep 2084°F66°F91°F 199161°F 199125%0%
Sep 2184°F66°F90°F 198857°F 200624%0%
Sep 2284°F65°F92°F 198847°F 198324%0%
Sep 2383°F65°F93°F 199746°F 198223%0%
Sep 2483°F65°F92°F 198848°F 198223%0%
Sep 2583°F65°F91°F 198848°F 198222%0%
Sep 2683°F64°F90°F 198648°F 198222%0%
Sep 2783°F64°F90°F 198442°F 200622%0%
Sep 2882°F64°F91°F 198649°F 200621%0%
Sep 2982°F63°F91°F 200743°F 200621%0%
Sep 3082°F63°F92°F 201648°F 200620%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Hancock County, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

September 1
sunrise 6:35 AM, sunset 7:21 PM
September 30
sunrise 6:51 AM, sunset 6:44 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00220521 (Bay St Louis Nasa), public domain. Records: NOAA GHCN-Daily, station USC00229426, 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.