Norwalk climate

Norwalk Weather in April

NOAA 1991-2020 normals for Stamford 5 N, 11.7 km from Norwalk

Average highs run from 55°F on April 1 to 68°F on April 30, and lows from 35°F to 45°F. Normal precipitation for the month is 4.44 in over about 12 wet days.

April day by day

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

Normal daily high and low temperature at Norwalk, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

April at a glance

Average high
62°F
Average low
40°F
Precipitation
4.44 in
Snowfall
0.5 in
Record high
91°FApr 28, 1990
Record low
18°FApr 7, 1982
Chance of a freeze
93%
Daylight
12 h 42 min to 13 h 57 min
Cloud cover
64%
Humidity
80%
Dew point
41°F
Wind
7.8 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
Apr 155°F35°F71°F 195521°F 197036%4%
Apr 256°F36°F72°F 195524°F 196437%4%
Apr 356°F36°F75°F 196726°F 200837%4%
Apr 457°F36°F71°F 202525°F 199537%3%
Apr 557°F37°F70°F 198822°F 199537%3%
Apr 658°F37°F70°F 199119°F 198238%3%
Apr 758°F37°F81°F 201018°F 198238%3%
Apr 859°F38°F84°F 199123°F 198238%3%
Apr 959°F38°F81°F 201324°F 197739%2%
Apr 1060°F38°F81°F 195526°F 199739%2%
Apr 1160°F39°F79°F 195526°F 201839%2%
Apr 1261°F39°F86°F 197725°F 197639%2%
Apr 1361°F39°F81°F 202328°F 196739%2%
Apr 1462°F40°F87°F 202326°F 195040%1%
Apr 1562°F40°F82°F 202630°F 195740%1%
Apr 1662°F41°F85°F 200229°F 198140%1%
Apr 1763°F41°F89°F 200230°F 196240%1%
Apr 1863°F41°F85°F 200232°F 196240%1%
Apr 1964°F42°F82°F 197631°F 199040%1%
Apr 2064°F42°F84°F 195232°F 195640%1%
Apr 2165°F42°F85°F 195729°F 195640%1%
Apr 2265°F43°F82°F 196029°F 197540%1%
Apr 2366°F43°F79°F 195230°F 198240%1%
Apr 2466°F43°F78°F 200134°F 196740%1%
Apr 2566°F44°F85°F 196032°F 195640%0%
Apr 2667°F44°F83°F 200933°F 196740%0%
Apr 2767°F44°F86°F 199033°F 200240%0%
Apr 2868°F45°F91°F 199033°F 197240%0%
Apr 2968°F45°F86°F 201734°F 196640%0%
Apr 3068°F45°F79°F 200738°F 199240%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Norwalk, in percent, and of at least 0.1 inch of snowfall.010203040501102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

April 1
sunrise 6:37 AM, sunset 7:19 PM
April 30
sunrise 5:53 AM, sunset 7:50 PM

Every day of April: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00067970 (Stamford 5 N), public domain. Records: NOAA GHCN-Daily, station USW00094702, 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.