Amboy climate

Amboy Weather in September

NOAA 1991-2020 normals for Amboy, 0.9 km from Amboy

Average highs run from 80°F on September 1 to 70°F on September 30, and lows from 57°F to 46°F. Normal precipitation for the month is 3.34 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 Amboy, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
76°F
Average low
52°F
Precipitation
3.34 in
Record high
98°FSep 7, 1976
Record low
25°FSep 1, 1987
Chance of a freeze
25%
Days of 90°F or more
1.5
Daylight
13 h 12 min to 11 h 46 min
Cloud cover
52%
Humidity
69%
Dew point
51°F
Wind
10.7 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 180°F57°F92°F 196025°F 198725%0%
Sep 280°F56°F93°F 195836°F 198525%0%
Sep 380°F56°F96°F 202332°F 197425%0%
Sep 479°F56°F96°F 202337°F 198524%0%
Sep 579°F56°F95°F 202337°F 196224%0%
Sep 679°F55°F97°F 197640°F 196224%0%
Sep 779°F55°F98°F 197640°F 197924%0%
Sep 878°F55°F95°F 197837°F 198624%0%
Sep 978°F54°F92°F 197837°F 201124%0%
Sep 1078°F54°F96°F 201340°F 195924%0%
Sep 1178°F54°F92°F 197838°F 196424%0%
Sep 1277°F53°F96°F 201235°F 200724%0%
Sep 1377°F53°F96°F 199834°F 196324%0%
Sep 1477°F52°F93°F 199835°F 199624%0%
Sep 1577°F52°F91°F 199431°F 200724%0%
Sep 1676°F52°F91°F 201832°F 200724%0%
Sep 1776°F51°F91°F 202136°F 197124%0%
Sep 1876°F51°F93°F 198836°F 197124%0%
Sep 1975°F50°F96°F 198432°F 199124%0%
Sep 2075°F50°F91°F 202132°F 196224%0%
Sep 2174°F50°F98°F 202232°F 199924%0%
Sep 2274°F49°F93°F 201625°F 197424%0%
Sep 2374°F49°F93°F 201728°F 198324%0%
Sep 2473°F48°F89°F 201732°F 200024%0%
Sep 2573°F48°F89°F 201732°F 198924%0%
Sep 2672°F48°F88°F 197426°F 198424%0%
Sep 2772°F47°F91°F 202130°F 200124%0%
Sep 2871°F47°F88°F 201328°F 196724%0%
Sep 2971°F46°F87°F 202131°F 196723%0%
Sep 3070°F46°F88°F 202129°F 197223%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Amboy, 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 6:40 AM, sunset 7:52 PM
September 30
sunrise 7:13 AM, sunset 6:59 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00210157 (Amboy), public domain. Records: NOAA GHCN-Daily, station USC00217326, 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.