Norwalk Weather in August
Average highs run from 80°F on August 1 to 77°F on August 31, and lows from 62°F to 59°F. Normal precipitation for the month is 4.10 in over about 10 wet days.
August day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
August at a glance
- Average high
- 79°F
- Average low
- 61°F
- Precipitation
- 4.10 in
- Record high
- 103°FAug 24, 2023
- Record low
- 34°FAug 14, 1964
- Chance of a freeze
- 0%
- Days of 90°F or more
- 1.2
- Daylight
- 14 h 35 min to 13 h 15 min
- Cloud cover
- 55%
- Humidity
- 73%
- Dew point
- 60°F
- Wind
- 8.3 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.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Aug 1 | 80°F | 62°F | 101°F 2006 | 44°F 1976 | 34% | 0% |
| Aug 2 | 80°F | 62°F | 102°F 1988 | 43°F 1965 | 34% | 0% |
| Aug 3 | 80°F | 62°F | 100°F 1988 | 42°F 1950 | 34% | 0% |
| Aug 4 | 80°F | 62°F | 100°F 1988 | 41°F 1971 | 34% | 0% |
| Aug 5 | 80°F | 62°F | 95°F 1947 | 40°F 1957 | 34% | 0% |
| Aug 6 | 80°F | 62°F | 96°F 1937 | 40°F 1917 | 34% | 0% |
| Aug 7 | 80°F | 62°F | 97°F 1937 | 42°F 1976 | 34% | 0% |
| Aug 8 | 80°F | 62°F | 100°F 2001 | 44°F 1976 | 33% | 0% |
| Aug 9 | 80°F | 62°F | 99°F 1936 | 40°F 1972 | 33% | 0% |
| Aug 10 | 80°F | 62°F | 96°F 1944 | 43°F 1982 | 33% | 0% |
| Aug 11 | 79°F | 62°F | 94°F 1944 | 39°F 1967 | 33% | 0% |
| Aug 12 | 79°F | 61°F | 98°F 1936 | 39°F 1967 | 33% | 0% |
| Aug 13 | 79°F | 61°F | 95°F 1975 | 40°F 2004 | 33% | 0% |
| Aug 14 | 79°F | 61°F | 94°F 1965 | 34°F 1964 | 33% | 0% |
| Aug 15 | 79°F | 61°F | 99°F 1936 | 41°F 1979 | 32% | 0% |
| Aug 16 | 79°F | 61°F | 100°F 1937 | 38°F 1976 | 32% | 0% |
| Aug 17 | 79°F | 61°F | 101°F 1988 | 40°F 1962 | 32% | 0% |
| Aug 18 | 79°F | 61°F | 102°F 1988 | 37°F 1977 | 32% | 0% |
| Aug 19 | 79°F | 61°F | 95°F 1947 | 42°F 1963 | 32% | 0% |
| Aug 20 | 79°F | 61°F | 95°F 1955 | 35°F 1950 | 32% | 0% |
| Aug 21 | 78°F | 61°F | 99°F 1955 | 34°F 1950 | 31% | 0% |
| Aug 22 | 78°F | 60°F | 95°F 1947 | 39°F 1958 | 31% | 0% |
| Aug 23 | 78°F | 60°F | 98°F 1948 | 43°F 1941 | 31% | 0% |
| Aug 24 | 78°F | 60°F | 103°F 2023 | 37°F 1942 | 31% | 0% |
| Aug 25 | 78°F | 60°F | 98°F 2003 | 34°F 1958 | 31% | 0% |
| Aug 26 | 78°F | 60°F | 93°F 1948 | 37°F 1964 | 31% | 0% |
| Aug 27 | 77°F | 60°F | 94°F 1937 | 40°F 1968 | 31% | 0% |
| Aug 28 | 77°F | 59°F | 94°F 1955 | 40°F 1917 | 31% | 0% |
| Aug 29 | 77°F | 59°F | 97°F 1984 | 34°F 1965 | 31% | 0% |
| Aug 30 | 77°F | 59°F | 95°F 1941 | 37°F 1893 | 31% | 0% |
| Aug 31 | 77°F | 59°F | 99°F 1941 | 35°F 1967 | 31% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CDT).
- August 1
- sunrise 5:51 AM, sunset 8:26 PM
- August 31
- sunrise 6:25 AM, sunset 7:40 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00471280 (Cashton), public domain. Records: NOAA GHCN-Daily, station USC00477997, 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.