Annual mean
Annual mean of daily highs
Annual mean of daily lows
Norfolk CDP, Connecticut
Official LSAD Designation: Norfolk CDP • Census GEOID: 0953400
• Northwest Hills Planning Region
Climate Normals & Weather Observations
30-year climate normals (1991–2020) and weather observations for Norfolk CDP.
Reference Weather Station: NORFOLK 2 SW, CT US (ID: USC00065445)
• Located 1.9 miles from community center
• Elevation: 408.4 m
| Month | Average High (°F) | Average Low (°F) | Mean Temp (°F) | Precipitation (in) |
|---|---|---|---|---|
| January | 29.8° | 14.1° | 21.9° | 3.97" |
| February | 32.3° | 15.4° | 23.9° | 3.33" |
| March | 40.4° | 22.8° | 31.6° | 4.21" |
| April | 54.0° | 34.0° | 44.0° | 3.93" |
| May | 65.3° | 45.4° | 55.3° | 4.13" |
| June | 73.4° | 54.5° | 64.0° | 4.96" |
| July | 78.4° | 59.5° | 69.0° | 4.77" |
| August | 76.4° | 58.1° | 67.3° | 4.67" |
| September | 69.0° | 50.9° | 60.0° | 4.90" |
| October | 56.5° | 39.7° | 48.1° | 5.14" |
| November | 44.9° | 30.2° | 37.5° | 4.07" |
| December | 34.6° | 21.1° | 27.9° | 4.86" |
Annual Temperature History
2010–2025, completed calendar years only.
NOAA station NORFOLK 2 SW, CT US (ID: USC00065445) • 1.9 miles from community center .
This is the same reference station used for monthly normals.
Source: NOAA NCEI Global Summary of the Year.
Annual temperature data table (°F)
| Year | Annual mean (°F) | Annual mean of daily highs (°F) | Annual mean of daily lows (°F) |
|---|---|---|---|
| 2010 | 47.4 | 55.7 | 39.1 |
| 2011 | 47.1 | 55.5 | 38.7 |
| 2012 | 48.5 | 57.1 | 39.9 |
| 2013 | 45.9 | 54.7 | 37.1 |
| 2014 | 44.7 | 53.5 | 35.8 |
| 2015 | 46.0 | 55.4 | 36.6 |
| 2016 | 47.7 | 56.9 | 38.4 |
| 2017 | 46.7 | 55.3 | 38.1 |
| 2018 | 46.5 | 54.7 | 38.2 |
| 2019 | 45.5 | 54.3 | 36.8 |
| 2020 | 48.0 | 56.7 | 39.4 |
| 2021 | 47.3 | 55.6 | 38.9 |
| 2022 | 46.9 | 56.1 | 37.6 |
| 2023 | 48.3 | 56.9 | 39.8 |
| 2024 | 48.6 | 57.5 | 39.7 |
| 2025 | 46.6 | 55.5 | 37.8 |
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.