February weather in Groton, CT
The average temperature in Groton in February is 32.4°F (24.6°F–40.2°F). Average precipitation: 2.20 inches.
February is a winter month in Groton, and is cooler than the annual average of 51.4°F. Daily temperatures swing about 15.6°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 10h 24m. For travel, February is cold.
Avg High
40.2°F
Avg Low
24.6°F
Precipitation
2.20 in
Daylight
10h 24m
February records in Groton
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| February 1 | 57.0°F (2012) | 7.2°F (2022) | 0.90 in (2008) |
| February 2 | 51.1°F (2016) | 10.0°F (2005) | 0.64 in (2011) |
| February 3 | 54.0°F (2016) | 3.2°F (2023) | 0.72 in (2006) |
| February 4 | 55.0°F (2016) | -3.8°F (2023) | 1.04 in (2006) |
| February 5 | 55.0°F (2019) | 8.2°F (2009) | 0.91 in (2001) |
| February 6 | 55.9°F (2008) | 5.2°F (2015) | 1.67 in (2004) |
| February 7 | 53.1°F (2020) | 3.9°F (2026) | 0.83 in (2022) |
| February 8 | 60.1°F (2017) | 1.0°F (2026) | 0.50 in (2013) |
| February 9 | 54.0°F (2023) | 7.0°F (2026) | 0.81 in (2017) |
| February 10 | 64.0°F (2023) | 11.1°F (2011) | 0.44 in (2005) |
| February 11 | 57.9°F (2009) | 8.2°F (2011) | 0.47 in (2020) |
| February 12 | 57.9°F (2022) | 7.0°F (2003) | 0.60 in (2019) |
| February 13 | 53.1°F (2023) | 0.1°F (2016) | 1.71 in (2008) |
| February 14 | 55.9°F (2023) | -7.8°F (2016) | 1.10 in (2000) |
| February 15 | 55.0°F (2023) | 0.1°F (2015) | 0.33 in (2005) |
| February 16 | 71.1°F (2023) | -2.7°F (2015) | 1.10 in (2025) |
| February 17 | 57.9°F (2006) | 9.1°F (2015) | 0.33 in (2003) |
| February 18 | 55.9°F (2011) | -75.8°F (2022) | 0.48 in (2022) |
| February 19 | 57.9°F (2017) | -66.8°F (2022) | 0.20 in (2013) |
| February 20 | 55.0°F (2023) | -13.9°F (2022) | 0.35 in (2026) |
| February 21 | 61.0°F (2018) | -66.8°F (2022) | 0.34 in (2019) |
| February 22 | 57.9°F (2018) | 12.9°F (2001) | 1.32 in (2003) |
| February 23 | 63.0°F (2022) | -70.8°F (2022) | 0.82 in (2003) |
| February 24 | 59.0°F (2017) | -1.8°F (2015) | 1.19 in (2010) |
| February 25 | 59.0°F (2017) | 7.2°F (2015) | 1.60 in (2010) |
| February 26 | 54.0°F (2025) | 7.0°F (2005) | 0.35 in (2008) |
| February 27 | 54.0°F (2018) | 7.2°F (2015) | 0.83 in (2020) |
| February 28 | 55.0°F (2004) | 10.2°F (2006) | 0.54 in (2024) |
| February 29 | 54.0°F (2016) | 11.1°F (2008) | 0.07 in (2012) |