Cambridge climate

Cambridge Weather in September

NOAA 1991-2020 normals for Cambridge, 2 km from Cambridge

Average highs run from 77°F on September 1 to 66°F on September 30, and lows from 55°F to 43°F. Normal precipitation for the month is 3.07 in over about 7 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 Cambridge, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
72°F
Average low
50°F
Precipitation
3.07 in
Record high
98°FSep 5, 2023
Record low
19°FSep 28, 1893
Chance of a freeze
35%
Daylight
13 h 16 min to 11 h 45 min
Cloud cover
55%
Humidity
70%
Dew point
50°F
Wind
10.1 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 177°F55°F94°F 189431°F 197423%0%
Sep 276°F55°F95°F 196137°F 189523%0%
Sep 376°F54°F90°F 196029°F 197423%0%
Sep 476°F54°F96°F 202338°F 197423%0%
Sep 576°F54°F98°F 202336°F 196223%0%
Sep 675°F53°F92°F 196036°F 198823%0%
Sep 775°F53°F97°F 197633°F 198623%0%
Sep 875°F53°F95°F 193738°F 197223%0%
Sep 974°F52°F92°F 194736°F 196923%0%
Sep 1074°F52°F90°F 189533°F 194323%0%
Sep 1174°F52°F93°F 201231°F 189423%0%
Sep 1273°F51°F91°F 194832°F 194023%0%
Sep 1373°F51°F91°F 193931°F 200723%0%
Sep 1472°F50°F96°F 193931°F 199623%0%
Sep 1572°F50°F94°F 193921°F 200723%0%
Sep 1672°F50°F92°F 194829°F 200723%0%
Sep 1771°F49°F91°F 202529°F 194323%0%
Sep 1871°F49°F90°F 189531°F 199323%0%
Sep 1970°F48°F93°F 194028°F 197123%0%
Sep 2070°F48°F88°F 202128°F 196223%0%
Sep 2170°F47°F88°F 194127°F 193424%0%
Sep 2269°F47°F93°F 193624°F 197424%0%
Sep 2369°F46°F90°F 193727°F 198324%0%
Sep 2468°F46°F88°F 193525°F 200024%0%
Sep 2568°F46°F84°F 193321°F 194724%0%
Sep 2667°F45°F84°F 198623°F 196524%0%
Sep 2767°F45°F86°F 198723°F 189323%0%
Sep 2866°F44°F88°F 189419°F 189323%0%
Sep 2966°F44°F87°F 202422°F 198523%0%
Sep 3066°F43°F86°F 202522°F 193923%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Cambridge, in percent, and of at least 0.1 inch of snowfall.05101520251102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

September 1
sunrise 6:34 AM, sunset 7:50 PM
September 30
sunrise 7:10 AM, sunset 6:55 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00211227 (Cambridge), public domain. Records: NOAA GHCN-Daily, station USC00211227, 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.