Groton Weather in April
Average highs run from 49°F on April 1 to 62°F on April 30, and lows from 28°F to 39°F. Normal precipitation for the month is 2.00 in.
April day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
April at a glance
- Average high
- 56°F
- Average low
- 33°F
- Precipitation
- 2.00 in
- Snowfall
- 4.5 in
- Record high
- 92°FApr 22, 2026
- Record low
- -6°FApr 4, 2018
- Chance of a freeze
- 100%
- Daylight
- 12 h 49 min to 14 h 16 min
- Cloud cover
- 64%
- Humidity
- 63%
- Dew point
- 31°F
- Wind
- 12.3 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 |
|---|---|---|---|---|---|---|
| Apr 1 | 49°F | 28°F | 76°F 2012 | 8°F 2014 | 5% | |
| Apr 2 | 49°F | 28°F | 72°F 2021 | 13°F 2014 | 5% | |
| Apr 3 | 50°F | 29°F | 75°F 2021 | -2°F 2018 | 5% | |
| Apr 4 | 50°F | 29°F | 76°F 2021 | -6°F 2018 | 5% | |
| Apr 5 | 51°F | 29°F | 76°F 2021 | 6°F 2018 | 5% | |
| Apr 6 | 51°F | 30°F | 67°F 2012 | 3°F 2018 | 5% | |
| Apr 7 | 52°F | 30°F | 72°F 2017 | 3°F 2018 | 5% | |
| Apr 8 | 52°F | 30°F | 75°F 2017 | 16°F 2016 | 4% | |
| Apr 9 | 53°F | 31°F | 82°F 2014 | 15°F 2013 | 4% | |
| Apr 10 | 53°F | 31°F | 67°F 2024 | 13°F 2026 | 4% | |
| Apr 11 | 54°F | 31°F | 81°F 2015 | 17°F 2017 | 4% | |
| Apr 12 | 54°F | 32°F | 79°F 2026 | 16°F 2016 | 4% | |
| Apr 13 | 55°F | 32°F | 85°F 2024 | 10°F 2013 | 4% | |
| Apr 14 | 55°F | 32°F | 85°F 2016 | 17°F 2014 | 4% | |
| Apr 15 | 56°F | 33°F | 76°F 2024 | 10°F 2014 | 4% | |
| Apr 16 | 56°F | 33°F | 85°F 2026 | 15°F 2020 | 4% | |
| Apr 17 | 57°F | 33°F | 73°F 2015 | 16°F 2020 | 4% | |
| Apr 18 | 57°F | 34°F | 75°F 2015 | 20°F 2022 | 4% | |
| Apr 19 | 57°F | 34°F | 71°F 2014 | 19°F 2013 | 3% | |
| Apr 20 | 58°F | 35°F | 82°F 2019 | 11°F 2013 | 3% | |
| Apr 21 | 58°F | 35°F | 79°F 2026 | 21°F 2021 | 3% | |
| Apr 22 | 59°F | 35°F | 92°F 2026 | 19°F 2015 | 3% | |
| Apr 23 | 59°F | 36°F | 78°F 2016 | 16°F 2013 | 3% | |
| Apr 24 | 60°F | 36°F | 88°F 2012 | 22°F 2013 | 3% | |
| Apr 25 | 60°F | 37°F | 80°F 2012 | 18°F 2013 | 3% | |
| Apr 26 | 60°F | 37°F | 72°F 2013 | 23°F 2022 | 2% | |
| Apr 27 | 61°F | 37°F | 83°F 2013 | 27°F 2017 | 2% | |
| Apr 28 | 61°F | 38°F | 70°F 2021 | 26°F 2017 | 2% | |
| Apr 29 | 62°F | 38°F | 76°F 2018 | 23°F 2026 | 2% | |
| Apr 30 | 62°F | 39°F | 81°F 2015 | 30°F 2017 | 2% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CDT).
- April 1
- sunrise 7:12 AM, sunset 8:01 PM
- April 30
- sunrise 6:22 AM, sunset 8:38 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00390120 (Andover #2), public domain. Records: NOAA GHCN-Daily, station USC00390022, 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.