Annual mean
Annual mean of daily highs
Annual mean of daily lows
Romulus city, Michigan
Official LSAD Designation: Romulus city • Census GEOID: 2669420
• Wayne County
Climate Normals & Weather Observations
30-year climate normals (1991–2020) and weather observations for Romulus city.
Reference Weather Station: DETROIT METRO AP, MI US (ID: USW00094847)
• Located 2.0 miles from community center
• Elevation: 192.3 m
| Month | Average High (°F) | Average Low (°F) | Mean Temp (°F) | Precipitation (in) |
|---|---|---|---|---|
| January | 32.3° | 19.2° | 25.8° | 2.23" |
| February | 35.2° | 20.8° | 28.0° | 2.08" |
| March | 45.9° | 28.6° | 37.2° | 2.43" |
| April | 58.7° | 39.1° | 48.9° | 3.26" |
| May | 70.3° | 50.2° | 60.3° | 3.72" |
| June | 79.7° | 60.2° | 69.9° | 3.26" |
| July | 83.7° | 64.4° | 74.1° | 3.51" |
| August | 81.4° | 63.2° | 72.3° | 3.26" |
| September | 74.4° | 55.5° | 64.9° | 3.22" |
| October | 62.0° | 44.0° | 53.0° | 2.53" |
| November | 48.6° | 33.9° | 41.2° | 2.57" |
| December | 37.2° | 25.3° | 31.3° | 2.25" |
Annual Temperature History
2010–2025, completed calendar years only.
NOAA station DETROIT METRO AP, MI US (ID: USW00094847) • 2.0 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 | 51.9 | 60.4 | 43.4 |
| 2011 | 51.1 | 59.5 | 42.8 |
| 2012 | 53.8 | 63.2 | 44.5 |
| 2013 | 49.9 | 58.3 | 41.4 |
| 2014 | 47.7 | 56.5 | 38.9 |
| 2015 | 50.8 | 59.9 | 41.6 |
| 2016 | 52.9 | 61.7 | 44.0 |
| 2017 | 52.4 | 61.2 | 43.6 |
| 2018 | 51.4 | 59.7 | 43.1 |
| 2019 | 50.5 | 59.0 | 42.0 |
| 2020 | 51.9 | 60.5 | 43.4 |
| 2021 | 52.6 | 61.3 | 43.9 |
| 2022 | 51.1 | 60.2 | 42.0 |
| 2023 | 52.5 | 60.9 | 44.1 |
| 2024 | 54.1 | 62.7 | 45.4 |
| 2025 | 51.0 | 60.0 | 42.0 |
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.